Found 51 papers in cond-mat It has been realized over the past two decades that topological nontriviality
can be present not only in insulators but also in gapless semimetals, the most
prominent example being Weyl semimetals in three dimensions. Key to topological
classification schemes are the three ``internal" symmetries, time reversal
${\cal T}$, charge conjugation ${\cal C}$, and their product, called chiral
symmetry ${\cal S}={\cal T}{\cal C}$. In this work, we show that robust
topological nodal line semimetal phases occur in $d=3$ in systems whose
internal symmetries include ${\cal S}$, without invoking crystalline symmetries
other than translations. Since the nodal loop semimetal naturally appears as an
intermediate gapless phase between the topological and the trivial insulators,
a sufficient condition for the nodal loop phase to exist is that the symmetry
class must have a nontrivial topological insulator in $d=3$. Our classification
uses the winding number on a loop that links the nodal line. A nonzero winding
number on a nodal loop implies robust gapless drumhead states on the surface
Brillouin zone. We demonstrate how our classification works in all the
nontrivial chiral classes and how it differs from the previous understanding of
topologically protected nodal line semimetals.
In recent years, Floquet engineering has attracted considerable attention as
a promising approach for tuning topological phase transitions. In this work, we
investigate the effects of high-frequency time-periodic driving in a
four-dimensional (4D) topological insulator, focusing on topological phase
transitions at the off-resonant quasienergy gap. The 4D topological insulator
hosts gapless three-dimensional boundary states characterized by the second
Chern number $C_{2}$. We demonstrate that the second Chern number of 4D
topological insulators can be modulated by tuning the amplitude of
time-periodic driving. This includes transitions from a topological phase with
$C_{2}=\pm3$ to another topological phase with $C_{2}=\pm1$, or to a
topological phase with an even second Chern number $C_{2}=\pm2$ which is absent
in the 4D static system. Finally, the approximation theory in the
high-frequency limit further confirms the numerical conclusions.
We investigate the finite-temperature superfluid behavior of ultracold atomic
Fermi gases in quasi-two-dimensional Lieb lattices with a short-range
attractive interaction, using a pairing fluctuation theory within the BCS-BEC
crossover framework. We find that the presence of a flat band, along with van
Hove singularities, leads to exotic quantum phenomena. As the Fermi level
enters the flat band, both the gap and the superfluid transition temperature
$T_c$ as a function of interaction change from a conventional exponential
behavior into an unusual power law, and the evolution of superfluid densities
with temperature also follows a power law even at weak interactions. The
quantum geometric effects, manifested by an enhanced effective pair hopping
integral, may contribute significantly to both $T_c$ and the superfluidities.
As the chemical potential crosses the van Hove singularities in the weak
interaction regime, the nature of pairing changes between particle-like and
hole-like. A pair density wave state emerges at high densities with a
relatively strong interaction strength.
Lifshitz transitions are topological transitions of a Fermi surface, whose
signatures typically appear in the conduction properties of a host metal. Here,
we demonstrate, using an extended Falicov- Kimball model of a two-flavor
fermion system, that a Lifshitz transition which occurs in the noninteracting
limit impacts interaction-induced insulating phases, even though they do not
host Fermi surfaces. For strong interactions we find a first order transition
between states of different polarization This transition line ends in a very
unusual quantum critical endpoint, whose presence is stabilized by the onset of
inter-flavor coherence. We demonstrate that the surfaces of maximum coherence
in these states reflect the distinct Fermi surface topologies of the states
separated by the non-interacting Lifshitz transition. The phenomenon is shown
to be independent of the band topologies involved. Experimental realizations of
our results are discussed for both electronic and optical lattice systems.
In spite of the interest in the two-dimensional electron gases (2DEGs)
experimentally found at surfaces and interfaces, important uncertainties remain
about the observed insulator--metal transitions (IMTs). Here we show how an
explicit improper coupling of carrier sources with a relevant soft mode
significantly affects the transition. The analysis presented here for 2DEGs at
polar interfaces is based on group theory, Landau-Ginzburg theory, and
illustrated with first-principles calculations for the prototypical case of the
LaAlO$_3$/SrTiO$_3$ interface, for which such a structural transition has
recently been observed. This direct coupling implies that the appearance of the
soft mode is always accompanied by carriers. For sufficiently strong coupling
an avalanche-like first-order IMT is predicted.
We investigate disordered-driven transitions between trivial and topological
insulator (TI) phases in two-dimensional (2D) systems. Our study primarily
focuses on the BHZ model with Anderson disorder, while other standard 2DTI
models exhibit equivalent features. The analysis is based on the local Chern
marker (LCM), a local quantity that allows for the characterization of
topological transitions in finite and disordered systems. Our simulations
indicate that disorder-driven trivial to topological insulator transitions are
nicely characterized by $\mathcal{C}_0$, the \textit{disorder averaged} LCM
near the central cell of the system. We show that $\mathcal{C}_0$ is
characterized by a single-parameter scaling, namely, $\mathcal{C}_0(M, W, L)
\equiv \mathcal{C}_0(z)$ with $z = [W^\mu-W_c^\mu(M)]L$, where $M$ is the Dirac
mass, $W$ is the disorder strength and $L$ is the system size, while $W_c(M)
\propto \sqrt{M}$ and $\mu \approx 2$ stand for the critical disorder strength
and critical exponent, respectively. Our numerical results are in agreement
with a theoretical prediction based on a first-order Born approximation (1BA)
analysis. These observations lead us to speculate that the universal scaling
function we have found is rather general for amorphous and disorder-driven
topological phase transitions.
From a systematic study of thermal and charge transport in various single
crystals of compensated topological insulators we identify the evolution of a
large low-temperature thermal Hall effect as a characteristic common feature.
In order to separate phononic and electronic contributions in the measured
longitudinal and transverse thermal conductivity, the electronic contributions
are estimated from corresponding electrical resisivity and Hall effect
measurements on the same samples by using the Wiedemann-Franz law. As may be
expected for charge-compensated topological insulators the longitudinal thermal
conductivity is phonon-dominated in all samples. However, we also find a
pronounced field-linear thermal Hall effect that becomes most pronounced in the
low-temperature range, where all samples are good electrical insulators. This
indicates an underlying phononic mechanism of the thermal Hall effect and in
this respect the topological insulators resemble other, mainly ionic,
insulators, which have been reported to show a phonon-induced thermal Hall
effect, but its underlying phononic mechanism remains to be identified. Our
observation of a comparable thermal Hall ratio in topological insulators
supports a theoretical scenario that explains a thermal Hall effect through
skew scattering on charged impurities.
This study investigates the intricate relationship between dissipative
processes of open quantum systems and the non-Hermitian quantum field theory of
relativistic fermionic systems. By examining the influence of dissipative
effects on Dirac fermions via Lindblad formalism, we elucidate the effects of
the coupling of relativistic Dirac particles with the environment. Employing
rigorous theoretical analysis, we explore the impact of dissipative
interactions and find the Lyapunov equation of the relativistic
dissipation-driven fermionic system. By use of a thermal ansatz, one finds the
solution to the Lyapunov equations in terms of a stationary Wigner
distribution. Our results describe a non-hermitian fermionic system and provide
valuable insights into dissipative quantum phenomena' fundamental mechanisms in
relativistic fermionic systems, advancing our understanding of their behavior
in non-equilibrium scenarios.
Kagome-lattice crystal is crucial in quantum materials research, exhibiting
unique transport properties due to its rich band structure and the presence of
nodal lines and rings. Here, we investigate the electronic transport properties
and perform first-principles calculations for Ni$_{3}$In$_{2}$Se$_{2}$ kagome
topological semimetal. First-principle calculations indicate six endless Dirac
nodal lines and two nodal rings with a $\pi$-Berry phase in the
Ni$_{3}$In$_{2}$Se$_{2}$ compound. The temperature-dependent resistivity is
dominated by two scattering mechanisms: $s$-$d$ interband scattering occurs
below 50 K, while electron-phonon ($e$-$p$) scattering is observed above 50 K.
The magnetoresistance (MR) curve aligns with the theory of extended Kohler's
rule, suggesting multiple scattering origins and temperature-dependent carrier
densities. A maximum MR of 120\% at 2 K and 9 T, with a maximum estimated
mobility of approximately 3000 cm$^{2}$V$^{-1}$s$^{-1}$ are observed. The Ni
atom's hole-like d$_{x^{2}-y^{2} }$ and electron-like d$_{z^{2}}$ orbitals
exhibit peaks and valleys, forming a local indirect-type band gap near the
Fermi level (E$_{F}$). This configuration enhances the motion of electrons and
holes, resulting in high mobility and relatively high magnetoresistance.
Silicene is an intriguing silicon allotrope with a honeycomb lattice
structure similar to graphene with slightly buckled geometry. Molybdenum
disulfide (MoS2), on the other hand, is a significant 2D transition metal
dichalcogenide that has demonstrated promise in a variety of applications. Van
der Waals heterostructures, which are created by stacking distinct 2D crystals
on top of each other, are becoming increasingly important due to their unique
optoelectronic and electromechanical properties. Using molecular dynamics
simulations, the mechanical characteristics of vertically stacked Silicene/MoS2
van der Waals heterostructures are examined in this study. The response and
structural stability of the heterostructures at various loading orientations
and temperatures are given particular attention. The research findings
highlight that the fracture strength of the Silicene/MoS2 heterostructure
decreases by 40% in both armchair and zigzag orientations when the temperature
is raised from 100K to 600K. Furthermore, a linear decrease in Young's modulus
is observed as temperature rises. It is noteworthy that the Rule of Mixture
(ROM) predictions for Young's Moduli are observed to be marginally lower than
the simulation results. The analyses reveal that the silicene layer fractures
first under both loading directions shows crack propagation at +-60{\deg}in the
armchair and predominantly perpendicular in zigzag, followed by subsequent MoS2
layer failure. The study also shows that the MoS2 layer largely determines the
elastic properties of the heterostructure, whereas the silicene layer primarily
dictates the failure of the heterostructure. These findings offer an in-depth
understanding of the mechanical properties of Silicene/MoS2 heterostructures,
with significant implications for their use in cutting-edge nanoelectronics and
nanomechanical systems.
Magnetic domain walls (DWs) are topological defects that exhibit robust
low-energy modes that can be harnessed for classical and neuromorphic
computing. However, the quantum nature of these modes has been elusive thus
far. Using the language of cavity optomechanics, we show how to exploit a
geometric Berry-phase interaction between the localized DWs and the extended
magnons in short ferromagnetic insulating wires to efficiently cool the DW to
its quantum ground state or to prepare nonclassical states exhibiting a
negative Wigner function that can be extracted from the power spectrum of the
emitted magnons. Moreover, we demonstrate that magnons can mediate long-range
entangling interactions between qubits stored in distant DWs, which could
facilitate the implementation of a universal set of quantum gates. Our proposal
relies only on the intrinsic degrees of freedom of the ferromagnet, and can be
naturally extended to explore the quantum dynamics of DWs in ferrimagnets and
antiferromagnets, as well as quantum vortices or skyrmions confined in
insulating magnetic nanodisks.
Due to the flexibility of C and N atoms in forming different types of bonds,
the prediction of new two-dimensional (2D) carbon nitrides is a hot topic in
the field of carbon-based materials. Using first-principles calculations, we
propose two C4N monolayers with a zigzag buckled (ZB) structure. The ZB C4N
monolayers contain raised-C (raised-N) atoms with sp3 hybridization, different
from the traditional 2D graphene-like carbon nitride materials with sp2
hybridization. Interestingly, the band structures of the ZB C4N monolayers
exhibit quasi-one-dimensional (quasi-1D) Dirac nodal line that results from the
corresponding quasi-1D structure of the zigzag carbon chains, which is
essentially different from the more common ring-shaped nodal line. The quasi-1D
Dirac nodal line exhibits the following features: (i) gapless Dirac points,
(ii) varying Fermi velocity, and (iii) slightly curved band along the
high-symmetry path. All these features are successfully explained by our
proposed tight-binding model that includes interactions up to the third
nearest-neighbor. The Fermi velocity of the 2D system can reach 105 m/s, which
is promising for applications in high-speed electronic devices. The topological
flat band structure determined by the Zak phase and band inversion of the
corresponding 1D system is edge-dependent, which is corresponding to the
Su-Schrieffer-Heeger model, providing to rich physical phenomena.
The intricate interplay between frustration and spin chirality has the
potential to give rise to unprecedented phases in frustrated quantum magnets.
We examine the ground state phase diagram of the spin-1/2 square lattice
J1-J2-Jx model by employing critical level crossings and ground state fidelity
susceptibility (FS) using exact diagonalization (ED) with full lattice
symmetries. Our analysis reveals the evolution of highly symmetric energy
levels as a function of J2 at fixed Jx. During a magnetic to non-magnetic phase
transition, the precise identification of the phase boundary is achieved
through critical level crossings between the gapless excitation of a magnetic
phase and the quasi-degenerate ground state of a non-magnet phase. Conversely,
a direct transition between two non-magnetic phases is characterized by a FS
peak accompanied by an avoided ground state level crossing, serving as a
distinctive signal. Within a substantial range of Jx, we identify an
anticipated chiral spin liquid (CSL) state and an adjacent nematic spin liquid
(NSL) phase with a degeneracy of two on a cylinder. These two phases are
demarcated by a nearly vertical boundary line at J2 = 0.65. This critical line
terminates at the lower boundary of a magnetic ordered chiral spin solid (CSS)
phase. We validate the topological nature of the CSL using the modular S matrix
of the minimum entangled states (MES) on a torus, along with the entanglement
spectra (ES) of even and odd sectors on a cylinder, employing an
SU(2)-symmetric density matrix renormalization group (DMRG) method.
Furthermore, we delve into a comprehensive discussion on the nature of the NSL,
exploring aspects such as ground state degeneracy, the local bond energy
landscape, and the singlet and triplet gaps on various tori. These analysis
provide substantial evidence supporting the nematic nature of the NSL.
We report on the experimental realization of Pb1-xSnxTe pentagonal nanowires
(NWs) with [110] orientation using molecular beam epitaxy techniques. Using
first-principles calculations, we investigate the structural stability in NWs
of SnTe and PbTe in three different structural phases: cubic, pentagonal with
[001] orientation and pentagonal with [110] orientation. Within a semiclassical
approach, we show that the interplay between ionic and covalent bonds favors
the formation of pentagonal NWs. Additionally, we find that this pentagonal
structure is more likely to occur in tellurides than in selenides. The
disclination and twin boundary cause the electronic states originating from the
NW core region to generate a conducting band connecting the valence and
conduction bands, creating a symmetry-enforced metallic phase. The metallic
core band has opposite slopes in the cases of Sn and Te twin boundary, while
the bands from the shell are insulating. We finally study the electronic and
topological properties of pentagonal NWs unveiling their potential as a new
platform for higher-order topology and fractional charge. These pentagonal NWs
represent a unique case of intrinsic core-shell one-dimensional nanostructures
with distinct structural, electronic and topological properties between the
core and the shell region.
We construct a one-dimensional (1D) topological SSH-like model with chiral
symmetry and a superimposed hopping modulation, which we call the chiral
Aubry-Andr\'e model. We show that its topological properties can be described
in terms of a pair (C,W) of a two-dimensional (2D) Chern number C, stemming
from a superspace description of the model, and a 1D winding number W,
originating in its chiral symmetric nature. Thus, we showcase for the first
time explicit coexistence of 1D and 2D topology in a model existing in 1D
physical space. We detail the superspace description by showcasing how our
model can be mapped to a Harper-Hofstadter model, familiar from the description
of the integer quantum Hall effect, and analyze the vanishing field limit
analytically. An extension of the method used for vanishing fields is provided
in order to handle any finite fields, corresponding to hopping modulations both
commensurate and incommensurate with the lattice. In addition, this formalism
allows us to obtain certain features of the 2D superspace model, such as its
number of massless Dirac nodes, purely in terms of topological quantities,
computed without the need to go into momentum space.
The manipulation of particle transport in synthetic quantum matter is an
active research frontier for its theoretical importance and potential
applications. Here we experimentally demonstrate an engineered topological
transport in a synthetic flat-band lattice of ultracold $^{87}$Rb atoms. We
implement a quasi-one-dimensional rhombic chain with staggered flux in the
momentum space of the atomic condensate and observe biased local oscillations
that originate from the interplay of the staggered flux and flat-band
localization under the mechanism of Aharonov-Bohm caging. Based on these
features, we design and experimentally confirm a state-dependent chiral
transport under the periodic modulation of the synthetic flux. We show that the
phenomenon is topologically protected by the winding of the Floquet Bloch bands
of a coarse-grained effective Hamiltonian. The observed chiral transport offers
a strategy for efficient quantum device design where topological robustness is
ensured by fast Floquet driving and flat-band localization.
Exciton polaritons are inherently non-Hermitian systems with adjustable gain
and loss coefficients. In this work we show that exciton polariton condensates
can be selectively localized in an optically-induced lattice with equal
potential depth by judiciously controlling a second focused pump with a very
small size. Specifically, the localized polariton condensate can be tuned among
different potential traps by adjusting the relative distance between the small
pump spot and the potential lattice. The adjustment of the excitation position
of the smaller pump and its combination with the bigger pump for the potential
creation induce a position-dependent loss distribution across the system. The
localization of the exciton polariton condensate and its control are
independent of the orientation of the potential lattice, thus, even in slightly
disordered system, one can selectively excite such localized polariton
condensates. Our results illuminate a path to manipulate the non-Hermitian
bosonic condensates in integrated photonic chips.
There has been a resurgence of interest in using origami principles--along
with $2$D materials--to design a wide array of nanoscale devices. In this work,
we take cognizance of the fact that small-scale devices are vulnerable to
entropic thermal fluctuations and thus a foundational question underlying
small-scale origami pertains to its stability. To properly understand the
behavior of these origami-based nanodevices, we must simultaneously consider
the geometric mechanics of origami along with the interplay between thermal
fluctuations, entropic repulsive forces, van der Waals attraction, and other
molecular-scale phenomena. In this work, to elucidate the rich behavior
underpinning the evolution of an origami device at the nanoscale, we develop a
minimal statistical mechanics model of folded nanoscale sheets. We use the
model to investigate (1) the thermodynamic multistability of nanoscale origami
structures and (2) the rate at which thermal fluctuations drive its
unfolding--that is, its temporal stability. We identify, for the first time, an
entropic torque that is a critical driving force for the unfolding process.
Both the thermodynamic multistability and temporal stability have a nontrivial
dependence on the origami's bending stiffness, the radii of curvature of its
creases, the ambient temperature, its thickness, and its interfacial energy
(between folded layers). Specifically, for graphene, we show that there is a
critical side length below which it can no longer be folded with stability;
similarly, there exists a critical crease diameter, membrane thickness (e.g.
for multilayer graphene), and temperature above which a crease cannot be stably
folded. To investigate the rate of thermally driven unfolding, we extend
Kramers' escape rate theory to cases where the minima of the energy well occurs
at a boundary.
The interplay between crystalline symmetry and band topology gives rise to
unprecedented lower-dimensional boundary states in higher-order topological
insulators (HOTIs). However, the measurement of the topological invariants of
HOTIs remains a significant challenge. Here, we propose the multipole winding
number (MWN) for chiral-symmetric HOTIs, achieved by applying a corner twisted
boundary condition. The MWN, arising from both bulk and boundary states, may
accurately capture the bulk-corner correspondence in finite systems. To address
the measurement challenge, we leverage the perturbative nature of the corner
twisted boundary condition and develop a real-space approach for determining
the MWN in both two-dimensional and three-dimensional systems. The real-space
formula provides an experimentally viable strategy for directly probing the
topology of chiral-symmetric HOTIs through dynamical evolution. Our findings
not only highlight the twisted boundary condition as a powerful tool for
investigating HOTIs, but also establish a paradigm for exploring real-space
formulas for the topological invariants of HOTIs.
The well-known Mott's formula links the thermoelectric power characterised by
Seebeck coefficient to conductivity. We calculate analytically the
thermoelectric current and Seebeck coefficient in one-dimensional systems and
show that, while the prediction of Mott's formula is valid for Dirac fermions,
it is misleading for the carriers having a parabolic dispersion. We apply the
developed formalism to metallic single wall carbon nanotubes and obtain a
non-trivial non-monotonic dependence of the Seebeck coefficient on the chemical
potential. We emphasize that, in contrast to the Mott's formula, the classical
Kelvin's formula that links thermoelectric power to the temperature derivative
of the chemical potential is perfectly valid in carbon nanotubes in the
ballistic regime. Interestingly, however, the Kelvin's formula fails in two-
and three-dimensional systems in the ballistic regime.
Main-group chalcogenides with layered crystal structures and high in-plane
anisotropy are attracting increasing interest for a range of practical
applications. The III-VI semiconductor, monoclinic gallium monotelluride
(m-GaTe), has been recently used in high-sensitivity
photodetectors/phototransistors and electronic memory applications due to its
anisotropic properties yielding superior optical and electrical performance.
Despite these applications, the origin of such anisotropy, namely the complex
structural and bonding environments in GaTe nanostructures remain to be fully
understood. In the present work, we report a comprehensive atomic-scale
characterization of m-GaTe by state-of-the-art element-resolved atomic-scale
microscopy experiments. By performing imaging for two different view
directions, we are able to directly measure the in-plane anisotropy of m-GaTe
at the sub-Angstrom level, and show that it compares well with the results of
first-principles modeling. Quantum-chemical bonding analyses provide a detailed
picture of the atomic neighbor interactions within the layers, revealing that
vertical Ga-Ga homopolar bonds get stronger when they are distorted and
rotated, inducing the strong in-plane anisotropy.
Magnetic nano-skyrmions develop quantized helicity excitations, and the
quantum tunneling between nano-skyrmions possessing distinct helicities is
indicative of the quantum nature of these particles. Experimental methods
capable of non-destructively resolving the quantum aspects of topological spin
textures, their local dynamical response, and their functionality now promise
practical device architectures for quantum operations. With abilities to
measure, engineer, and control matter at the atomic level, nano-skyrmions
present opportunities to translate ideas into solid-state technologies.
Proof-of-concept devices will offer electrical control over the helicity,
opening a promising new pathway towards functionalizing collective spin states
for the realization of a quantum computer based on skyrmions. This Perspective
aims to discuss developments and challenges in this new research avenue in
quantum magnetism and quantum information.
Mesh-like structures, such as mucus gel or cytoskeleton networks, are
ubiquitous in biological systems. These intricate structures are composed of
cross-linked, semi-flexible bio-filaments, crucial to numerous biological
processes. In many biological systems, active self-propelled particles like
motor proteins or bacteria navigate these intricate polymer networks.In this
study, we develop a computational model of three-dimensional cubic-topological,
swollen polymer networks of semi-flexible filaments. We perform Langevin
dynamics simulations to investigate the diffusion of active tracer particles
navigating through these networks. By analyzing various physical observables,
we investigate the effects of mesh-to-particle size ratio, P\'eclet number of
active particles, and bending stiffness of the polymer networks upon active
trapped-and-hopping diffusion of the tracer. When the tracer size is equal to
or larger than the mesh size, the polymer stiffness substantially enhances
trapping while suppressing the hopping process. Notably, the mean trapped time
exhibits an exponential growth law to the bending stiffness with an
activity-dependent slope. An analytic theory based on the mean first-passage
time of active particles in a harmonic potential is developed. Our findings
deepen the comprehension of the intricate interplay between the polymer's
bending stiffness, tracer size, and the activity of tracer particles. This
knowledge can shed light on important biological processes, such as
motor-driven cargo transport or drug delivery, which hinge on the behavior of
active particles within biological gels.
Efficient scattering into the exciton polariton ground state is a key
prerequisite for generating Bose-Einstein condensates and low-threshold
polariton lasing. However, this can be challenging to achieve at low densities
due to the polariton bottleneck effect that impedes phonon-driven scattering
into low-momentum polariton states. The rich exciton landscape of transition
metal dichalcogenides (TMDs) provides potential intervalley scattering pathways
via dark excitons to rapidly populate these polaritons. Here, we present a
microscopic study exploring the time- and momentum-resolved relaxation of
exciton polaritons supported by a \ce{MoSe2} monolayer integrated within a
Fabry-Perot cavity. By exploiting phonon-assisted transitions between
momentum-dark excitons and the lower polariton branch, we demonstrate that it
is possible to circumvent the bottleneck region and efficiently populate the
polariton ground state. Furthermore, this intervalley pathway is predicted to
give rise to, yet unobserved, angle-resolved phonon sidebands in
low-temperature photoluminescence spectra that are associated with
momentum-dark excitons. This represents a distinctive experimental signature
for efficient phonon-mediated polariton-dark-exciton interactions.
Topological polaritons, combining the robustness of the topological protected
edge states to defects and disorder with the strong nonlinear properties of
polariton bosons, represent an excellent platform to investigate novel photonic
topological phases. In this work, we demonstrated the optical spin Hall effect
(OSHE) and its symmetry switching in the exciton-polariton regime of pure
DPAVBi crystals. Benefiting from the photonic Rashba-Dresselhaus spin-orbit
coupling in organic crystals, we observed the separation of left- and
right-circularly-polarized polariton emission in two-dimensional momentum space
and real space, a signature of the OSHE. Above the lasing threshold, the OSHE
pattern changes due to transverse quantization in the microbelt. This device
without superlattice structure has great potential applications in topological
polaritonics, such as information transmission, photonic integrated chips and
quantum information.
The time evolution of a wave packet is a tool to detect topological phase
transitions in two-dimensional Dirac materials, such as graphene and silicene.
Here we extend the analysis to HgTe/CdTe quantum wells and study the evolution
of their electron current wave packet, using 2D effective Dirac Hamiltonians
and different layer thicknesses. We show that the two different periodicities
that appear in this temporal evolution reach a minimum near the critical
thickness, where the system goes from normal to inverted regime. Moreover, the
maximum of the electron current amplitude changes with the layer thickness,
identifying that current maxima reach their higher value at the critical
thickness. Thus, we can characterize the topological phase transitions in terms
of the periodicity and amplitude of the electron currents.
Frequency-selective or even frequency-tunable Terahertz (THz) photodevices
are critical components for many technological applications that require
nanoscale manipulation, control and confinement of light. Within this context,
gate-tunable phototransistors based on plasmonic resonances are often regarded
as the most promising devices for frequency-selective detection of THz fields.
The exploitation of constructive interference of plasma waves in such detectors
not only promises frequency selectivity, but also a pronounced sensitivity
enhancement at the target frequencies. However, clear signatures of
plasmon-assisted resonances in THz detectors have been only revealed at
cryogenic temperatures so far, and remain unobserved at application-relevant
room-temperature conditions. In this work, we demonstrate the sought-after
room-temperature resonant detection of THz radiation in short-channel gated
photodetectors made from high-quality single-layer graphene. The survival of
this intriguing resonant regime at room-temperature ultimately relies on the
weak intrinsic electron-phonon scattering in graphene, which avoids the damping
of the plasma oscillations.
We show that energy relaxation causes a point defect in the uniaxial-nematic
phase of a spin-2 Bose-Einstein condensate to deform into a spin-Alice ring
that exhibits a composite core structure with distinct topology at short and
long distances from the singular line. An outer biaxial-nematic core exhibits a
spin half-quantum vortex structure with a uniaxial-nematic inner core. By
numerical simulation we demonstrate a dynamical oscillation between the
spin-Alice ring and a split-core hedgehog configuration via the appearance of
ferromagnetic rings with associated vorticity inside an extended core region.
We further show that a similar dynamics is exhibited by a spin-Alice ring
surrounding a spin-vortex line resulting from the relaxation of a monopole
situated on a spin-vortex line in the biaxial-nematic phase. In the cyclic
phase similar states are shown instead to form extended phase-mixing cores
containing rings with fractional mass circulation or cores whose spatial shape
reflect the order-parameter symmetry of cyclic inner core, depending on the
initial configuration.
In great contrast to the numerous discoveries of superconductivity in
layer-stacked graphene systems, the absence of superconductivity in the
simplest and cleanest monolayer graphene remains a big puzzle. Here, through
realistic computation of electronic structure, we identify a systematic trend
that superconductivity appears to emerge only upon alteration of the low-energy
electronic lattice from the underlying honeycomb atomic structure. We then
demonstrate that this inhibition can result from from geometric frustration of
the bond lattice that disables quantum phase coherence of the order parameter
residing on it. In comparison, upon deviating from the honeycomb lattice,
relief of geometric frustration allows robust superfluidity with non-trivial
spatial structure. For the specific examples of bilayer and trilayer graphene
under an external electric field, such bond centered order parameter would
develop superfluidity with staggered flux that breaks the time-reversal
symmetry. Our study also suggests the possible realization of the long-sought
superconductivity in single-layer graphene via the application of
uni-directional strain.
The fractional quantum Hall effect was experimentally discovered in 1982. It
was observed that the Hall conductivity $\sigma_{yx}$ of a two-dimensional
electron system is quantized, $\sigma_{yx}=e^2/3h$, in the vicinity of the
Landau level filling factor $\nu=1/3$. In 1983, Laughlin proposed a trial
many-body wave function, which he claimed described a ``new state of matter''
-- a homogeneous incompressible liquid with fractionally charged
quasiparticles. Here I develop an exact diagonalization theory that allows
calculation of the energy and other physical properties of the ground and
excited states of a system of $N$ two-dimensional Coulomb interacting electrons
in a strong magnetic field. I analyze the energies, electron densities, and
other physical properties of the systems with $N\le 7$ electrons, continuously
as a function of magnetic field in the range $1/4\lesssim\nu<1$. The results
show that both the ground and excited states of the system resemble a sliding
Wigner crystal, whose parameters are influenced by the magnetic field. Energy
gaps in the many-particle spectra appear and disappear as the magnetic field
changes. I also calculate the physical properties of the $\nu=1/3$ Laughlin
state for $N\le 8$ and show that neither this state nor its fractionally
charged excitations describe the physical reality. The results obtained shed
new light on the nature of the ground and excited states in the fractional
quantum Hall effect.
Electrons at the border of localization generate exotic states of matter
across all classes of strongly correlated electron materials and many other
quantum materials with emergent functionality. Heavy electron metals are a
model example, in which magnetic interactions arise from the opposing limits of
localized and itinerant electrons. This remarkable duality is intimately
related to the emergence of a plethora of novel quantum matter states such as
unconventional superconductivity, electronic-nematic states, hidden order and
most recently topological states of matter such as topological Kondo insulators
and Kondo semimetals and putative chiral superconductors. The outstanding
challenge is that the archetypal Kondo lattice model that captures the
underlying electronic dichotomy is notoriously difficult to solve for real
materials. Here we show, using the prototypical strongly-correlated
antiferromagnet CeIn$_3$, that a multi-orbital periodic Anderson model embedded
with input from ab initio bandstructure calculations can be reduced to a simple
Kondo-Heisenberg model, which captures the magnetic interactions
quantitatively. We validate this tractable Hamiltonian via high-resolution
neutron spectroscopy that reproduces accurately the magnetic soft modes in
CeIn$_3$, which are believed to mediate unconventional superconductivity. Our
study paves the way for a quantitative understanding of metallic quantum states
such as unconventional superconductivity.
Layered antiferromagnetic materials have emerged as a novel subset of the
two-dimensional family providing a highly accessible regime with prospects for
layer-number-dependent magnetism. Furthermore, transition metal phosphorous
trichalcogenides, MPX3 (M = transition metal; X = chalcogen) provide a platform
for investigating fundamental interactions between magnetic and lattice degrees
of freedom providing new insights for developing fields of spintronics and
magnonics. Here, we use a combination of temperature dependent Raman
spectroscopy and density functional theory to explore
magnetic-ordering-dependent interactions between the manganese spin degree of
freedom and lattice vibrations of the non-magnetic sub-lattice via a
Kramers-Anderson super-exchange pathway in both bulk, and few-layer, manganese
phosphorous triselenide (MnPSe$_3$). We observe a nonlinear temperature
dependent shift of phonon modes predominantly associated with the non-magnetic
sub-lattice, revealing their non-trivial spin-phonon coupling below the
N{\'e}el temperature at 74 K, allowing us to extract mode-specific spin-phonon
coupling constants.
We examine the possible existence of Dirac semimetal with magnetic order in a
two-dimensional system with a nonsymmorphic symmetry by using the Hartree-Fock
mean-field theory within the Hubbard model. We locate the region in the
second-neighbor spin-orbit coupling vs Hubbard interaction phase diagram, where
such a state is stabilized. The edge states for the ribbons along two
orthogonal directions concerning the orientation of in-plane magnetic moments
are obtained. Finally, the effect of the in-plane magnetic field, which results
in the stabilization of the Weyl semimetallic state, and the nature of the edge
states corresponding to the Weyl semimetallic state for ribbon geometries are
also explored.
Whereas point-gap topological phases are responsible for exceptional
phenomena intrinsic to non-Hermitian systems, their realization in quantum
materials is still elusive. Here we propose a simple and universal platform of
point-gap topological phases constructed from Hermitian topological insulators
and superconductors. We show that (d-1)-dimensional point-gap topological
phases are realized by making a boundary in d-dimensional topological
insulators and superconductors dissipative. A crucial observation of the
proposal is that adding a decay constant to boundary modes in d-dimensional
topological insulators and superconductors is topologically equivalent to
attaching a (d-1)-dimensional point-gap topological phase to the boundary. We
furthermore establish the proposal from the extended version of the
Nielsen-Ninomiya theorem, relating dissipative gapless modes to point-gap
topological numbers. From the bulk-boundary correspondence of the point-gap
topological phases, the resultant point-gap topological phases exhibit
exceptional boundary states or in-gap higher-order non-Hermitian skin effects.
We discuss the construction of a microcanonical projection WOW of a quantum
operator O induced by an energy window filter W, its spectrum, and the
retrieval of canonical many-time correlations from it.
Kekul\'e-O order in graphene, which has recently been realized
experimentally, induces Dirac electron masses on the order of $m \sim 100
\text{meV}$. We show that twisted bilayer graphene in which one or both layers
have Kekul\'e-O order exhibits nontrivial flat electronic bands on honeycomb
and kagome lattices. When only one layer has Kekul\'e-O order, there is a
parameter regime for which the lowest four bands at charge neutrality form an
isolated two-orbital honeycomb lattice model with two flat bands. The
bandwidths are minimal at a magic twist angle $\theta \approx 0.7^\circ$ and
Dirac mass $m \approx 100 \text{meV}$. When both layers have Kekul\'e-O order,
there is a large parameter regime around $\theta\approx 1^\circ$ and $m\gtrsim
100 \text{meV}$ in which the lowest three valence and conduction bands at
charge neutrality each realize isolated kagome lattice models with one flat
band, while the next three valence and conduction bands are flat bands on
triangular lattices. These flat band systems may provide a new platform for
strongly correlated phases of matter.
The reliability of fast repeated erasures is studied experimentally and
theoretically in a 1-bit underdamped memory. The bit is encoded by the position
of a micro-mechanical oscillator whose motion is confined in a double well
potential. To contain the energetic cost of fast erasures, we use a resonator
with high quality factor $Q$: the erasure work $W$ is close to Landauer's
bound, even at high speed. The drawback is the rise of the system's temperature
$T$ due to a weak coupling to the environment. Repeated erasures without
letting the memory thermalize between operations result in a continuous
warming, potentially leading to a thermal noise overcoming the barrier between
the potential wells. In such case, the reset operation can fail to reach the
targeted logical state. The reliability is characterized by the success rate
$R^s_i$ after $i$ successive operations. $W$, $T$ and $R^s_i$ are studied
experimentally as a function of the erasure speed. Above a velocity threshold,
$T$ soars while $R^s_i$ collapses: the reliability of too fast erasures is low.
These experimental results are fully justified by two complementary models. We
demonstrate that $Q\simeq 10$ is optimal to contain energetic costs and
maintain high reliability standards for repeated erasures at any speed.
Braiding of Majorana states demonstrates their non-Abelian exchange
statistics. One implementation of braiding requires control of the pairwise
couplings between all Majorana states in a trijunction device. To have
adiabaticity, a trijunction device requires the desired pair coupling to be
sufficiently large and the undesired couplings to vanish. In this work, we
design and simulate a trijunction device in a two-dimensional electron gas with
a focus on the normal region that connects three Majorana states. We use an
optimisation approach to find the operational regime of the device in a
multi-dimensional voltage space. Using the optimization results, we simulate a
braiding experiment by adiabatically coupling different pairs of Majorana
states without closing the topological gap. We then evaluate the feasibility of
braiding in a trijunction device for different shapes and disorder strengths.
We predict a topological defect in ferroelectric barium titanate which we
call a skyrme line. These are line-like objects characterized by skyrmionic
topological charge. As well as configurations with integer charge, the charge
density can split into well-localized fractional parts. We show that under
certain conditions the fractional skyrme lines are stable. We discuss a
mechanism to create fractional topological charge objects and investigate their
stability.
We numerically simulate a non-Abelian lattice gauge theory in two spatial
dimensions, with Tensor Networks (TN). We focus on the SU(2) Yang-Mills model
in Hamiltonian formulation, with dynamical matter and minimally truncated gauge
field (hardcore gluon). Thanks to the TN sign-problem-free approach, we
characterize the phase diagram of the model at zero and finite baryon number as
a function of the quark bare mass and color charge. Already at intermediate
system sizes, we distinctly detect a liquid phase of quark-pair bound-state
quasi-particles (baryons), whose mass is finite towards the continuum limit.
Interesting phenomena arise at the transition boundary where color-electric and
color-magnetic terms are maximally frustrated: for low quark masses, we see
traces of potential deconfinement, while for high masses, signatures of a
possible topological order.
We present a braided circuit topology framework for investigating topology
and structural phase transitions in aggregates of semiflexible polymers. In the
conventional approach to circuit topology, which specifically applies to single
isolated folded linear chains, the number and arrangement of contacts within
the circuitry of a folded chain give rise to increasingly complex fold
topologies. Another avenue for achieving complexity is through the interaction
and entanglement of two or more folded linear chains. The braided circuit
topology approach describes the topology of such multiple-chain systems and
offers topological measures such as writhe, complexity, braid length, and
isotopy class. This extension of circuit topology to multichains reveals the
interplay between collapse, aggregation, and entanglement. In this work, we
show that circuit topological motif fractions are ideally suited order
parameters to characterise structural phase transitions in entangled systems
that can detect structural re-ordering other measures cannot.
Modulation of electronic properties of materials by electric fields is
central to the operation of modern semiconductor devices, providing access to
complex electronic behaviors and greater freedom in tuning the energy bands of
materials. Here, we explore one-dimensional superlattices induced by a
confining electrostatic potential in monolayer MoS$_2$, a prototypical
two-dimensional semiconductor. Using first-principles calculations, we show
that periodic potentials applied to monolayer MoS$_2$ induce electrostatic
superlattices in which the response is dominated by structural distortions
relative to purely electronic effects. These structural distortions reduce the
intrinsic band gap of the monolayer substantially while also polarizing the
monolayer through piezoelectric coupling, resulting in spatial separation of
charge carriers as well as Stark shifts that produce dispersive minibands.
Importantly, these minibands inherit the valley-selective magnetic properties
of monolayer MoS$_2$, enabling fine control over spin-valley coupling in
MoS$_2$ and similar transition-metal dichalcogenides.
We consider as a model of Weyl semimetal thermoelectric transport a
$(3+1)$-dimensional charged, relativistic and relaxed fluid with a $U(1)_{V}
\times U(1)_{A}$ chiral anomaly. We take into account all possible mixed
energy, momentum, electric and chiral charge relaxations, and discover which
are compatible with electric charge conservation, Onsager reciprocity and a
finite DC conductivity. We find that all relaxations respecting these
constraints necessarily render the system open and violate the second law of
thermodynamics. We then demonstrate how the relaxations we have found arise
from kinetic theory and a modified relaxation time approximation. Our results
lead to DC conductivities that differ from those found in the literature
opening the path to experimental verification.
Degeneracy points in non-Hermitian systems are of great interest. While a
homotopic framework exists for understanding their behavior in the absence of
symmetry, it does not apply to symmetry-protected degeneracy points with
reduced codimension. In this work, utilizing algebraic topology, we provide a
systematic classification of these symmetry-protected degenerate points and
investigate the braid conservation rule followed by them. Using a model
Hamiltonian and circuit simulation, we discover that, contrary to simple
annihilation, pairwise-created symmetry-protected degeneracy points merge into
a higher-order degeneracy point, which goes beyond the abelian picture. Our
findings empower researchers across diverse fields to uncover new phenomena and
applications harnessing symmetry-protected non-Hermitian degeneracy points.
The study of fractional Chern insulators and their exotic anyonic excitations
poses a major challenge in current experimental and theoretical research.
Quantum simulators, in particular ultracold atoms in optical lattices, provide
a promising platform to realize, manipulate, and understand such systems with a
high degree of controllability. Recently, an atomic $\nu=1/2$ Laughlin state
has been realized experimentally for a small system of two particles on 4 by 4
sites. The next challenge concerns the preparation of Laughlin states in
extended systems, ultimately giving access to anyonic braiding statistics or
gapless chiral edge-states in systems with open boundaries. Here, we propose
and analyze an experimentally feasible scheme to grow larger Laughlin states by
connecting multiple copies of the already existing 4-by-4-system. First, we
present a minimal setting obtained by coupling two of such patches, producing
an extended 8-by-4-system with four particles. Then, we analyze different
preparation schemes, setting the focus on two shapes for the extended system,
and discuss their respective advantages: While growing strip-like lattices
could give experimental access to the central charge, square-like geometries
are advantageous for creating quasi-hole excitations in view of braiding
protocols. We highlight the robust quantization of the fractional quasi-hole
charge upon using our preparation protocol. We benchmark the performance of our
patchwork preparation scheme by comparing it to a protocol based on coupling
one-dimensional chains. We find that the patchwork approach consistently gives
higher target-state fidelities, especially for elongated systems. The results
presented here pave the way towards near-term implementations of extended
Laughlin states in quantum gas microscopes and the subsequent exploration of
exotic properties of topologically ordered systems in experiments.
In this note, we classify topological solitons of $n$-brane fields, which are
nonlocal fields that describe $n$-dimensional extended objects. We consider a
class of $n$-brane fields that formally define a homomorphism from the $n$-fold
loop space $\Omega^n X_D$ of spacetime $X_D$ to a space $\mathcal{E}_n$.
Examples of such $n$-brane fields are Wilson operators in $n$-form gauge
theories. The solitons are singularities of the $n$-brane field, and we
classify them using the homotopy theory of ${\mathbb{E}_n}$-algebras. We find
that the classification of codimension ${k+1}$ topological solitons with
${k\geq n}$ can be understood using homotopy groups of $\mathcal{E}_n$. In
particular, they are classified by ${\pi_{k-n}(\mathcal{E}_n)}$ when ${n>1}$
and by ${\pi_{k-n}(\mathcal{E}_n)}$ modulo a ${\pi_{1-n}(\mathcal{E}_n)}$
action when ${n=0}$ or ${1}$. However, for ${n>2}$, their classification goes
beyond the homotopy groups of $\mathcal{E}_n$ when ${k< n}$, which we explore
through examples. We compare this classification to $n$-form $\mathcal{E}_n$
gauge theory. We then apply this classification and consider an ${n}$-form
symmetry described by the abelian group ${G^{(n)}}$ that is spontaneously
broken to ${H^{(n)}\subset G^{(n)}}$, for which the order parameter
characterizing this symmetry breaking pattern is an ${n}$-brane field with
target space ${\mathcal{E}_n = G^{(n)}/H^{(n)}}$. We discuss this
classification in the context of many examples, both with and without 't Hooft
anomalies.
We demonstrate that the classical dynamics influence the localization
behaviour of Majorana wavefunctions in Majorana billiards. By using a
connection between Majorana wavefunctions and eigenfunctions of a normal state
Hamiltonian, we show that Majorana wavefunctions in both p-wave and s-wave
topological superconductors inherit the properties of the underlying normal
state eigenfunctions. As an example, we demonstrate that Majorana wavefunctions
in topological superconductors with chaotic shapes feature quantum scarring.
Furthermore, we show a way to manipulate a localized Majorana wavefunction by
altering the underlying classical dynamics using a local potential away from
the localization region. Finally, in the presence of chiral symmetry breaking,
we find that the Majorana wavefunction in convex-shaped Majorana billiards
exhibits caustics formation, reminiscent of a normal state system with magnetic
field.
Identifying topological phases for a strongly correlated theory remains a
non-trivial task, as defining order parameters, such as Berry phases, is not
straightforward. Quantum information theory is capable of identifying
topological phases for a theory that exhibits quantum phase transition with a
suitable definition of order parameters that are related to different
entanglement measures for the system. In this work, we study entanglement
entropy for a bi-layer SSH model, both in the presence and absence of Hubbard
interaction and at varying interaction strengths. For the free theory, edge
entanglement acts as an order parameter, which is supported by analytic
calculations and numerical (DMRG) studies. We calculate the symmetry-resolved
entanglement and demonstrate the equipartition of entanglement for this model
which itself acts as an order parameter when calculated for the edge modes. As
the DMRG calculation allows one to go beyond the free theory, we study the
entanglement structure of the edge modes in the presence of on-site Hubbard
interaction for the same model. A sudden reduction of edge entanglement is
obtained as interaction is switched on. The explanation for this lies in the
change in the size of the degenerate subspaces in the presence and absence of
interaction. We also study the signature of entanglement when the interaction
strength becomes extremely strong and demonstrate that the edge entanglement
remains protected. In this limit, the energy eigenstates essentially become a
tensor product state, implying zero entanglement. However, a remnant entropy
survives in the non-trivial topological phase which is exactly due to the
entanglement of the edge modes.
It has been known that the large-$q$ complex SYK model falls under the same
universality class as that of van der Waals (mean-field) and saturates the
Maldacena-Shenker-Stanford bound, both features shared by various black holes.
This makes the SYK model a useful tool in probing the fundamental nature of
quantum chaos and holographic duality. This work establishes the robustness of
this shared universality class and chaotic properties for SYK-like models by
extending to a system of coupled large-$q$ complex SYK models of different
orders. We provide a detailed derivation of thermodynamic properties,
specifically the critical exponents for an observed phase transition, as well
as dynamical properties, in particular the Lyapunov exponent, via the
out-of-time correlator calculations. Our analysis reveals that, despite the
introduction of an additional scaling parameter through interaction strength
ratios, the system undergoes a continuous phase transition at low temperatures,
similar to that of the single SYK model. The critical exponents align with the
Landau-Ginzburg (mean-field) universality class, shared with van der Waals
gases and various AdS black holes. Furthermore, we demonstrate that the coupled
SYK system remains maximally chaotic in the large-$q$ limit at low
temperatures, adhering to the Maldacena-Shenker-Stanford bound, a feature
consistent with the single SYK model. These findings establish robustness and
open avenues for broader inquiries into the universality and chaos in complex
quantum systems. We conclude by considering the very low-temperature regime
where there is again a maximally chaotic to regular (non-chaotic) phase
transition. We then discuss relations with the Hawking-Page phase transition
observed in the holographic dual black holes.
The magnetic Weyl semimetal Co$_3$Sn$_2$S$_2$ is extensively investigated due
to its giant anomalous Hall effect (AHE).Recent studies demonstrate that the
AHE can be effectively tuned by multi-electron Ni doping.To reveal the
underlying mechanism of this significant manipulation,it is crucial to explore
the band structure modification caused by Ni doping. Here,we study the
electrodynamics of both pristine and Ni-doped Co$_{3-x}$Ni$_x$Sn$_2$S$_2$ with
$x=$0, 0.11 and 0.17 by infrared spectroscopy. We find that the inverted energy
gap around the Fermi level($E_{F}$) gets smaller at $x=$0.11,which is supposed
to enhance the Berry curvature and therefore increase the AHE.Then $E_{F}$
moves out of this gap at $x=$0.17. Additionally,the low temperature carrier
density is demonstrated to increase monotonically upon doping,which is
different from previous Hall measurement results. We also observe the evidences
of band broadening and exotic changes of high-energy interband transitions
caused by doping.Our results provide detailed information about the band
structure of Co$_{3-x}$Ni$_x$Sn$_2$S$_2$ at different doping levels,which will
help to guide further studies on the chemical tuning of AHE.
Higher-order topological insulators in two spatial dimensions display
fractional corner charges. While fractional charges in one dimension are known
to be captured by a many-body bulk invariant, computed by the Resta formula, a
many-body bulk invariant for higher-order topology and the corresponding
fractional corner charges remains elusive despite several attempts. Inspired by
recent work by Tada and Oshikawa, we propose a well-defined many-body bulk
invariant for $C_n$ symmetric higher-order topological insulators, which is
valid for both non-interacting and interacting systems. Instead of relating
them to the bulk quadrupole moment as was previously done, we show that in the
presence of $C_n$ rotational symmetry, this bulk invariant can be directly
identified with quantized fractional corner charges. In particular, we prove
that the corner charge is quantized as $e/n$ with $C_n$ symmetry, leading to a
$\mathbb{Z}_n$ classification for higher-order topological insulators in two
dimensions.

Date of feed: Tue, 09 Jan 2024 01:30:00 GMT**Search terms: **(topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+)|(flatband)|(flat.{1}band)|(LK.{1}99) **Stable nodal line semimetals in the chiral classes in three dimensions. (arXiv:2401.02966v1 [cond-mat.mes-hall])**

Faruk Abdulla, Ganpathy Murthy, Ankur Das

**Periodically driven four-dimensional topological insulator with tunable second Chern number. (arXiv:2401.02973v1 [cond-mat.mes-hall])**

Zheng-Rong Liu, Rui Chen, Bin Zhou

**BCS-BEC crossover in atomic Fermi gases in quasi-two-dimensional Lieb lattices: Effects of flat band and finite temperature. (arXiv:2401.02990v1 [cond-mat.quant-gas])**

Hao Deng, Lin Sun, Chuping Li, Yuxuan Wu, Junru Wu, Qijin Chen

**Impact of a Lifshitz Transition on the onset of spontaneous coherence. (arXiv:2401.03013v1 [cond-mat.str-el])**

Adam Eaton, Dibya Mukherjee, Herbert Fertig

**Improper two-dimensional electron gas formation. (arXiv:2401.03016v1 [cond-mat.mes-hall])**

Daniel Bennett, Pablo Aguado-Puente, Emilio Artacho, Nicholas Bristowe

**Phase transitions and scale invariance in topological Anderson insulators. (arXiv:2401.03028v1 [cond-mat.dis-nn])**

Bryan D. Assunção, Gerson J. Ferreira, Caio H. Lewenkopf

**Phonon thermal Hall effect in charge-compensated topological insulators. (arXiv:2401.03064v1 [cond-mat.str-el])**

Rohit Sharma, Mahasweta Bagchi, Yongjian Wang, Yoichi Ando, Thomas Lorenz

**Non-Hermitian Dirac theory from Lindbladian dynamics. (arXiv:2401.03075v1 [hep-th])**

Y.M.P.Gomes

**Endless Dirac nodal lines and high mobility in kagome semimetal Ni3In2Se2 single crystal. (arXiv:2401.03130v1 [cond-mat.mtrl-sci])**

Sanand Kumar Pradhan, Sharadnarayan Pradhan, Priyanath Mal, P. Rambabu, Archana Lakhani, Bipul Das, Bheema Lingam Chittari, G. R. Turpu, Pradip Das

**A Molecular Dynamics Study of Mechanical Properties of Vertically Stacked Silicene/MoS2 van der Waals Heterostructure. (arXiv:2401.03139v1 [cond-mat.mtrl-sci])**

Bishwajit Kar, Plabon Paul, Md Arshadur Rahman, Mohammad Jane Alam Khan

**Cavity magnonics with domain walls in insulating ferromagnetic wires. (arXiv:2401.03164v1 [cond-mat.mes-hall])**

Mircea Trif, Yaroslav Tserkovnyak

**Rectangular carbon nitrides C4N monolayers with a zigzag buckled structure: Quasi-one-dimensional Dirac nodal lines and topological flat edge states. (arXiv:2401.03402v1 [cond-mat.mtrl-sci])**

Linyang Li, Jialei Li, Yawei Yu, Yuxuan Song, Jia Li, Xiaobiao Liu, François M. Peeters, Xin Chen, Guodong Liu

**Ground state phase diagram and the exotic phases in the spin-1/2 square lattice J1-J2-Jx model. (arXiv:2401.03434v1 [cond-mat.str-el])**

Jianwei Yang, Zhao Liu, Ling Wang

**Pentagonal nanowires from topological crystalline insulators: a platform for intrinsic core-shell nanowires and higher-order topology. (arXiv:2401.03455v1 [cond-mat.mtrl-sci])**

Ghulam Hussain, Giuseppe Cuono, Piotr Dziawa, Dorota Janaszko, Janusz Sadowski, Slawomir Kret, Boguslawa Kurowska, Jakub Polaczynski, Kinga Warda, Shahid Sattar, Carlo M. Canali, Alexander Lau, Wojciech Brzezicki, Tomasz Story, Carmine Autieri

**Coexistence of 1D and 2D topology and genesis of Dirac cones in the chiral Aubry-Andr\'e model. (arXiv:2401.03541v1 [cond-mat.mes-hall])**

Tiago Antão, Daniel Miranda, Nuno Peres

**Engineering topological chiral transport in a flat-band lattice of ultracold atoms. (arXiv:2401.03611v1 [cond-mat.quant-gas])**

Hang Li, Qian Liang, Zhaoli Dong, Hongru Wang, Wei Yi, Jian-Song Pan, Bo Yan

**Optically controllable localization of exciton polariton condensates in a potential lattice. (arXiv:2401.03625v1 [physics.optics])**

Qiang Ai, Jan Wingenbach, Xinmiao Yang, Jing Wei, Zaharias Hatzopoulos, Pavlos G. Savvidis, Stefan Schumacher, Xuekai Ma, Tingge Gao

**Thermal fluctuations (eventually) unfold nanoscale origami. (arXiv:2401.03628v1 [cond-mat.stat-mech])**

Matthew Grasinger, Pradeep Sharma

**Probing Chiral-Symmetric Higher-Order Topological Insulators with Multipole Winding Number. (arXiv:2401.03699v1 [cond-mat.mes-hall])**

Ling Lin, Chaohong Lee

**Failure of the Mott's formula for the Thermopower in Carbon Nanotubes. (arXiv:2401.03721v1 [cond-mat.mes-hall])**

A. V. Kavokin, M. E. Portnoi, A. A. Varlamov, Yuriy Yerin

**Atom-by-Atom Mapping and Understanding of In-Plane Anisotropy in GaTe. (arXiv:2401.03731v1 [cond-mat.mtrl-sci])**

Jieling Tan, Jiang-Jing Wang, Hang-Ming Zhang, Han-Yi Zhang, Heming Li, Yu Wang, Yuxing Zhou, Volker L. Deringer, Wei Zhang

**Skyrmion Qubits: Challenges For Future Quantum Computing Applications. (arXiv:2401.03773v1 [cond-mat.mes-hall])**

Christina Psaroudaki, Elias Peraticos, Christos Panagopoulos

**Active Diffusion of Self-Propelled Particles in Semi-Flexible Polymer Networks. (arXiv:2401.03819v1 [cond-mat.soft])**

Yeongjin Kim, Won Kyu Kim, Jae-Hyung Jeon

**Circumventing the polariton bottleneck via dark excitons in 2D semiconductors. (arXiv:2401.03825v1 [cond-mat.mes-hall])**

Jamie M. Fitzgerald, Roberto Rosati, Beatriz Ferreira, Hangyong Shan, Christian Schneider, Ermin Malic

**Optical spin Hall effect pattern switching in polariton condensates in organic single-crystal microbelts. (arXiv:2401.03877v1 [cond-mat.mes-hall])**

Jiahuan Ren, Teng Long, Chunling Gu, Hongbing Fu, Dmitry Solnyshkov, Guillaume Malpuech, Qing Liao

**Quantum revivals in HgTe/CdTe quantum wells and topological phase transitions. (arXiv:2401.03884v1 [cond-mat.mes-hall])**

A. Mayorgas, M. Calixto, N.A. Cordero, E. Romera, O. Castaños

**Room-Temperature Plasmon-Assisted Resonant THz Detection in Single-layer Graphene Transistors. (arXiv:2401.04005v1 [cond-mat.mes-hall])**

José M. Caridad, Óscar Castelló, Sofía M. López Baptista, Takashi Taniguchi, Kenji Watanabe, Hartmut G. Roskos, Juan A. Delgado-Notario

**Composite cores of monopoles and Alice rings in spin-2 Bose-Einstein condensates. (arXiv:2401.04103v1 [cond-mat.quant-gas])**

Giuseppe Baio, Magnus O. Borgh

**Geometric inhibition of superflow in single-layer graphene suggests a staggered-flux superconductivity in bilayer and trilayer graphene. (arXiv:2401.04106v1 [cond-mat.supr-con])**

Xinyao Zhang, Ruoshi Jiang, Xingchen Shen, Xiaomo Huang, Qing-Dong Jiang, Wei Ku

**Toward a new theory of the fractional quantum Hall effect. (arXiv:2206.05152v6 [cond-mat.mes-hall] UPDATED)**

S. A. Mikhailov

**A microscopic Kondo lattice model for the heavy fermion antiferromagnet CeIn$_3$. (arXiv:2208.02211v2 [cond-mat.str-el] UPDATED)**

W. Simeth, Z. Wang, E. A. Ghioldi, D. M. Fobes, A. Podlesnyak, N. H. Sung, E. D. Bauer, J. Lass, J. Vonka, D. G. Mazzone, C. Niedermayer, Yusuke Nomura, Ryotaro Arita, C. D. Batista, F. Ronning, M. Janoschek

**Spin-order-dependent magneto-elastic coupling in two dimensional antiferromagnetic MnPSe$_3$ observed through Raman spectroscopy. (arXiv:2303.05554v2 [cond-mat.mtrl-sci] UPDATED)**

Daniel J. Gillard, Daniel Wolverson, Oscar M. Hutchings, Alexander I. Tartakovskii

**Antiferromagnetically ordered Dirac semimetal in Hubbard model with spin-orbit coupling. (arXiv:2303.17101v3 [cond-mat.str-el] UPDATED)**

Garima Goyal, Dheeraj Kumar Singh

**Universal platform of point-gap topological phases from topological materials. (arXiv:2304.08110v4 [cond-mat.mes-hall] UPDATED)**

Daichi Nakamura, Kazuya Inaka, Nobuyuki Okuma, Masatoshi Sato

**Microcanonical windows on quantum operators. (arXiv:2304.10948v3 [cond-mat.stat-mech] UPDATED)**

Silvia Pappalardi, Laura Foini, Jorge Kurchan

**Twistronics of Kekul\'e Graphene: Honeycomb and Kagome Flat Bands. (arXiv:2305.19927v2 [cond-mat.mes-hall] UPDATED)**

Michael G. Scheer, Biao Lian

**Reliability and operation cost of underdamped memories during cyclic erasures. (arXiv:2306.15573v2 [cond-mat.stat-mech] UPDATED)**

Salambô Dago, Sergio Ciliberto, Ludovic Bellon

**Design of a Majorana trijunction. (arXiv:2307.03299v2 [cond-mat.mes-hall] UPDATED)**

Juan Daniel Torres Luna, Sathish R. Kuppuswamy, Anton R. Akhmerov

**Fractional Skyrme lines in ferroelectric barium titanate. (arXiv:2307.08443v2 [cond-mat.mtrl-sci] UPDATED)**

Chris Halcrow, Egor Babaev

**(2+1)D SU(2) Yang-Mills Lattice Gauge Theory at finite density via tensor networks. (arXiv:2307.09396v2 [hep-lat] UPDATED)**

Giovanni Cataldi, Giuseppe Magnifico, Pietro Silvi, Simone Montangero

**Aggregation and structural phase transitions of semiflexible polymer bundles: a braided circuit topology approach. (arXiv:2308.14883v2 [cond-mat.soft] UPDATED)**

Jonas Berx, Alireza Mashaghi

**Piezoelectric Electrostatic Superlattices in Monolayer MoS$_2$. (arXiv:2309.01347v2 [cond-mat.mtrl-sci] UPDATED)**

Ashwin Ramasubramaniam, Doron Naveh

**Relaxation terms for anomalous hydrodynamic transport in Weyl semimetals from kinetic theory. (arXiv:2309.05692v3 [hep-th] UPDATED)**

Andrea Amoretti, Daniel K. Brattan, Luca Martinoia, Ioannis Matthaiakakis, Jonas Rongen

**Braiding topology of symmetry-protected degeneracy points in non-Hermitian systems. (arXiv:2309.16152v2 [quant-ph] UPDATED)**

Jia-Zheng Li, Kai Bai, Cheng Guo, Tian-Rui Liu, Liang Fang, Duanduan Wan, Meng Xiao

**Growing Extended Laughlin States in a Quantum Gas Microscope: A Patchwork Construction. (arXiv:2309.17402v2 [cond-mat.quant-gas] UPDATED)**

Felix A. Palm, Joyce Kwan, Brice Bakkali-Hassani, Markus Greiner, Ulrich Schollwöck, Nathan Goldman, Fabian Grusdt

**Topological aspects of brane fields: solitons and higher-form symmetries. (arXiv:2311.09293v2 [hep-th] UPDATED)**

Salvatore D. Pace, Yu Leon Liu

**Quantum Scars and Caustics in Majorana Billiards. (arXiv:2312.13368v2 [cond-mat.mes-hall] UPDATED)**

R. Johanna Zijderveld, A. Mert Bozkurt, Michael Wimmer, İnanç Adagideli

**Entanglement of edge modes in (very) strongly correlated topological insulators. (arXiv:2312.13598v2 [cond-mat.str-el] UPDATED)**

Nisa Ara, Rudranil Basu, Emil Mathew, Indrakshi Raychowdhury

**Thermodynamics and dynamics of coupled complex SYK models. (arXiv:2312.14644v2 [hep-th] UPDATED)**

Jan C. Louw, Linda M. van Manen, Rishabh Jha

**Optical probe on doping modulation of magnetic Weyl semimetal Co$_3$Sn$_2$S$_2$. (arXiv:2312.16437v3 [cond-mat.mes-hall] UPDATED)**

L. Wang, S. Zhang, B. B. Wang, B. X. Gao, L. Y. Cao, X. T. Zhang, X. Y. Zhang, E. K. Liu, R. Y. Chen

**Many-body higher-order topological invariant for $C_n$-symmetric insulators. (arXiv:2401.00050v2 [cond-mat.str-el] UPDATED)**

Ammar Jahin, Yuan-Ming Lu, Yuxuan Wang

Found 5 papers in prb An extended domain wall (DW) in the presence of the Dzyaloshinskii-Moriya interaction can harbor a nontrivial spin texture inside it, which is called the DW skyrmion due to its topological equivalence to skyrmions in chiral magnets. In this study we develop a theory for the dynamics of the DW skyrmi… ${\mathrm{ReS}}_{2}$ and ${\mathrm{ReSe}}_{2}$ are less frequently studied transition metal dichalcogenides. They appear in the $1{T}^{′}$ phase with a significantly reduced symmetry compared with, for example, ${\mathrm{MoS}}_{2}$, while inversion symmetry is preserved. Several broad peaks have bee… We study two-dimensional electron systems confined in wide quantum wells whose subband separation is comparable with the Zeeman energy. Two $N=0$ Landau levels from different subbands and with opposite spins are pinned in energy when they cross each other and electrons can freely transfer between th… The interplay among topology, crystal symmetry, magnetic order, and strong electron correlation can give rise to a plethora of exotic physical phenomena. The ZrSiS family is known as typical topological Dirac semimetals, among them $\mathit{Ln}\mathrm{SbTe}$ ($\mathit{Ln}$ denotes lanthanide) compou… Semiconductor moiré superlattices provide a highly tunable platform to study the interplay between electron correlation and band topology. For example, the generalized Kane-Mele-Hubbard model can be simulated by topological moiré flat bands in twisted transition metal dichalcogenide homobilayers. In…

Date of feed: Tue, 09 Jan 2024 04:16:58 GMT**Search terms: **(topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+)|(flatband)|(flat.{1}band)|(LK.{1}99) **Tunable domain-wall skyrmion Hall effect driven by a current and a magnetic field**

Seon Uk Han, Wooyon Kim, Se Kwon Kim, and Soong-Geun Je

Author(s): Seon Uk Han, Wooyon Kim, Se Kwon Kim, and Soong-Geun Je

[Phys. Rev. B 109, 014404] Published Mon Jan 08, 2024

**Effects of the spin-orbit interaction on the optical properties of ${\mathrm{ReS}}_{2}$ and ${\mathrm{ReSe}}_{2}$**

Thorsten Deilmann

Author(s): Thorsten Deilmann

[Phys. Rev. B 109, 035111] Published Mon Jan 08, 2024

**Metastable charge distribution between degenerate Landau levels**

Wenlu Lin, Xing Fan, Lili Zhao, Yoon Jang Chung, Adbhut Gupta, Kirk W. Baldwin, Loren Pfeiffer, Hong Lu, and Yang Liu

Author(s): Wenlu Lin, Xing Fan, Lili Zhao, Yoon Jang Chung, Adbhut Gupta, Kirk W. Baldwin, Loren Pfeiffer, Hong Lu, and Yang Liu

[Phys. Rev. B 109, 035305] Published Mon Jan 08, 2024

**Observation of Dirac nodal line states in topological semimetal candidate PrSbTe**

Dengpeng Yuan, Dajian Huang, Xin Ma, Xu Chen, Huifen Ren, Yun Zhang, Wei Feng, Xiegang Zhu, Bo Wang, Xuwen He, Jian Wu, Shiyong Tan, Qunqing Hao, Qiang Zhang, Yi Liu, Qin Liu, Zhengtai Liu, Chao Cao, Qiuyun Chen, and Xinchun Lai

Author(s): Dengpeng Yuan, Dajian Huang, Xin Ma, Xu Chen, Huifen Ren, Yun Zhang, Wei Feng, Xiegang Zhu, Bo Wang, Xuwen He, Jian Wu, Shiyong Tan, Qunqing Hao, Qiang Zhang, Yi Liu, Qin Liu, Zhengtai Liu, Chao Cao, Qiuyun Chen, and Xinchun Lai

[Phys. Rev. B 109, 045113] Published Mon Jan 08, 2024

**Majorana zero modes in twisted transition metal dichalcogenide homobilayers**

Xun-Jiang Luo, Wen-Xuan Qiu, and Fengcheng Wu

Author(s): Xun-Jiang Luo, Wen-Xuan Qiu, and Fengcheng Wu

[Phys. Rev. B 109, L041103] Published Mon Jan 08, 2024

Found 3 papers in prl Quantum many-body scars consist of a few low-entropy eigenstates in an otherwise chaotic many-body spectrum, and can weakly break ergodicity resulting in robust oscillatory dynamics. The notion of quantum many-body scars follows the original single-particle scars introduced within the context of qua… Anyons, exotic quasiparticles in two-dimensional space exhibiting nontrivial exchange statistics, play a crucial role in universal topological quantum computing. One notable proposal to manifest the fractional statistics of anyons is the toric code model; however, scaling up its size through quantum… We present an experimental proposal for the rapid preparation of the center of mass of a levitated particle in a macroscopic quantum state, that is a state delocalized over a length scale much larger than its zero-point motion and that has no classical analog. This state is prepared by letting the p…

Date of feed: Tue, 09 Jan 2024 04:16:56 GMT**Search terms: **(topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+)|(flatband)|(flat.{1}band)|(LK.{1}99) **Quantum Scars and Regular Eigenstates in a Chaotic Spinor Condensate**

Bertrand Evrard, Andrea Pizzi, Simeon I. Mistakidis, and Ceren B. Dag

Author(s): Bertrand Evrard, Andrea Pizzi, Simeon I. Mistakidis, and Ceren B. Dag

[Phys. Rev. Lett. 132, 020401] Published Mon Jan 08, 2024

**Demonstrating Path-Independent Anyonic Braiding on a Modular Superconducting Quantum Processor**

Jingjing Niu, Yishan Li, Libo Zhang, Jiajian Zhang, Ji Chu, Jiaxiang Huang, Wenhui Huang, Lifu Nie, Jiawei Qiu, Xuandong Sun, Ziyu Tao, Weiwei Wei, Jiawei Zhang, Yuxuan Zhou, Yuanzhen Chen, Ling Hu, Yang Liu, Song Liu, Youpeng Zhong, Dawei Lu, and Dapeng Yu

Author(s): Jingjing Niu, Yishan Li, Libo Zhang, Jiajian Zhang, Ji Chu, Jiaxiang Huang, Wenhui Huang, Lifu Nie, Jiawei Qiu, Xuandong Sun, Ziyu Tao, Weiwei Wei, Jiawei Zhang, Yuxuan Zhou, Yuanzhen Chen, Ling Hu, Yang Liu, Song Liu, Youpeng Zhong, Dawei Lu, and Dapeng Yu

[Phys. Rev. Lett. 132, 020601] Published Mon Jan 08, 2024

**Macroscopic Quantum Superpositions via Dynamics in a Wide Double-Well Potential**

M. Roda-Llordes, A. Riera-Campeny, D. Candoli, P. T. Grochowski, and O. Romero-Isart

Author(s): M. Roda-Llordes, A. Riera-Campeny, D. Candoli, P. T. Grochowski, and O. Romero-Isart

[Phys. Rev. Lett. 132, 023601] Published Mon Jan 08, 2024

Found 4 papers in pr_res The topology of the photonic bath shows excellent potential to engineer the intriguing interaction properties between light and matter. Here, we study the dielectric resonator array with a zigzag geometry, an analogy of the Su-Schrieffer-Heeger model equipped with peculiar freedom to manipulate the … The demonstration of quantum error correction (QEC) is one of the most important milestones in the realization of fully-fledged quantum computers. Toward this, QEC experiments using the surface codes have recently been actively conducted. However, it has not yet been realized to protect logical quan… ABCB tetralayer graphene features valley-local flat bands and van Hove singularities due to intrinsic crystal fields. This strengthens a variety of correlated states including ferri- and ferromagnetic and superconducting phases at low densities. The first-principle bounce-average gyrokinetic numerical experiments investigating the isotopic dependence of energy confinement achieve a quantitative agreement with experimental empirical scaling laws in tokamak magnetic confined fusion plasmas. Mitigation of turbulence radial electric field intensity |$\delta $$E$${}_{r}$|${}^{2}$ and associated poloidal $\delta $𝗘 $\times $ 𝗕 fluctuating velocity with the turbulence radial correlation length $l$${}_{c\phantom{\rule{0}{0ex}}r}$ $\propto $ $M$${}_{i}^{0.11}$ strongly deviating from the gyro-Bohm scaling is identified as the principal mechanism, along with zonal flow and trapped electron turbulence stabilization, contributing to the isotope effects in tokamak plasmas.

Date of feed: Tue, 09 Jan 2024 04:16:56 GMT**Search terms: **(topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+)|(flatband)|(flat.{1}band)|(LK.{1}99) **Magnon-magnon coupling mediated by topological edge states**

H. Pan, Z. H. An, and C.-M. Hu

Author(s): H. Pan, Z. H. An, and C.-M. Hu

[Phys. Rev. Research 6, 013020] Published Mon Jan 08, 2024

**Simulation and performance analysis of quantum error correction with a rotated surface code under a realistic noise model**

Mitsuki Katsuda, Kosuke Mitarai, and Keisuke Fujii

Author(s): Mitsuki Katsuda, Kosuke Mitarai, and Keisuke Fujii

[Phys. Rev. Research 6, 013024] Published Mon Jan 08, 2024

**Spin and charge fluctuation induced pairing in ABCB tetralayer graphene**

Ammon Fischer, Lennart Klebl, Jonas B. Hauck, Alexander Rothstein, Lutz Waldecker, Bernd Beschoten, Tim O. Wehling, and Dante M. Kennes

Author(s): Ammon Fischer, Lennart Klebl, Jonas B. Hauck, Alexander Rothstein, Lutz Waldecker, Bernd Beschoten, Tim O. Wehling, and Dante M. Kennes

[Phys. Rev. Research 6, L012003] Published Mon Jan 08, 2024

**Role of isotopes in microturbulence from linear to saturated Ohmic confinement regimes**

Lei Qi, Jae-Min Kwon, T. S. Hahm, M. Leconte, Sumin Yi, Y. W. Cho, and Janghoon Seo

Author(s): Lei Qi, Jae-Min Kwon, T. S. Hahm, M. Leconte, Sumin Yi, Y. W. Cho, and Janghoon Seo

[Phys. Rev. Research 6, L012004] Published Mon Jan 08, 2024

Found 2 papers in nano-lett

Date of feed: Tue, 09 Jan 2024 02:33:21 GMT**Search terms: **(topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+)|(flatband)|(flat.{1}band)|(LK.{1}99) **[ASAP] Electronic Structure of Isolated Graphene Nanoribbons in Solution Revealed by Two-Dimensional Electronic Spectroscopy**

Tetsuhiko Nagahara, Franco V. A. Camargo, Fugui Xu, Lucia Ganzer, Mattia Russo, Pengfei Zhang, Antonio Perri, Gabriel de la Cruz Valbuena, Ismael A. Heisler, Cosimo D’Andrea, Dario Polli, Klaus Müllen, Xinliang Feng, Yiyong Mai, and Giulio CerulloNano LettersDOI: 10.1021/acs.nanolett.3c02665

**[ASAP] Magneto-optical Effects of an Artificially Layered Ferromagnetic Topological Insulator with a TC of 160 K**

Xingyue Han, Hee Taek Yi, Seongshik Oh, and Liang WuNano LettersDOI: 10.1021/acs.nanolett.3c04103

Found 1 papers in acs-nano

Date of feed: Tue, 09 Jan 2024 02:51:53 GMT**Search terms: **(topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+)|(flatband)|(flat.{1}band)|(LK.{1}99) **[ASAP] Hierarchical Spatial Confinement Unlocking the Storage Limit of MoS2 for Flexible High-Energy Supercapacitors**

Ling Kang, Shude Liu, Qia Zhang, Jianxiong Zou, Jin Ai, Donghong Qiao, Wenda Zhong, Yuxiang Liu, Seong Chan Jun, Yusuke Yamauchi, and Jian ZhangACS NanoDOI: 10.1021/acsnano.3c09386