Found 24 papers in cond-mat The behavior of crosslinking polymer solutions as they transition from
liquid-like to solid-like material in flow determines success or failure in
several applications, from 3D printing to oil recovery in the earth's
subsurface to a wide variety of biological flows. Dilute polymer solutions flow
easily, while concentrated polymers or crosslinked polymer gels can clog pores,
nozzles, or channels. We have recently uncovered and described a third regime
of flow dynamics in polymers that occurs when crosslinking happens during flow:
intermittent flows. In a model system of alginate and calcium meeting at a
Y-shaped junction in a microfluidic channel, a persistent and regular pattern
of intermittent flow occurs when driven at a constant volume flow rate. At the
junction, calcium crosslinks alginate to form an alginate gel, which
subsequently deposits on the channel wall. As gel continues to deposit, it
obstructs the channel, causing the driving pressure to increase to maintain a
constant flow rate. At a critical pressure, corresponding to a critical shear
stress, the fluid pulls the gel from the wall, removing the gel from the device
and resulting in a clear channel. The gel deposit begins again, and the process
then repeats as long as flow continues. Chemical concentrations and flow rate
control both the frequency of ablation and the critical shear stress. In this
work, we provide an analytical framework to quantitatively describe the
intermittent behavior as a result of diffusively driven deposition in a high
Peclet number flow where convection dominates. Fitting the experimental data to
the model allows estimation of the deposition efficiency, or the fraction of
flowing material that sticks to the channel walls. By correlating the results
of the model with bulk rheology measurements, we find that deposition
efficiency increases with the stiffness of the gel formed in flow.
The recent experiments reported observation of a state with symmetry-breaking
appearing at the level of four-electron order parameter (electronic quadruplets
condensation) in a multicomponent system. This is in contrast to the
conventional case where order appears at the level of electron pairing fields.
Related states were theoretically demonstrated in mixtures of ultracold atoms.
Here, we discuss the topological counterparts of this concept, i.e.,
topological order appearing only in higher-than-usual composites under somewhat
related circumstances in multicomponent systems.
In recent years, research on the interaction between Orbital Angular Momentum
(OAM) and matter has seen a continuous influx of investigations. OAM possesses
distinct properties, such as additional degrees of freedom, vortex
characteristics, and topological properties, which expand its applications in
optical communication, optical sensing, and optical force. Through experiments
involving the interaction of a chiral metal swastika structure with a SAM-OAM
beam generated by a q-plate, we have observed a phenomenon does not present in
pure SAM beams. Fourier back focal plane (FBP) imaging under SAM beam
excitation easily identifies the chirality and geometric properties of the
structure. When the SAM-OAM beam excites the structure, FBP not only identifies
its chirality and geometric properties but also distinguishes different OAM
topological charges and signs, as well as the degree of elliptic polarization.
The stokes parametric FBP imaging reveals asymmetric polarization distribution
resulting from the interaction between a vortex beam and the chiral structure.
Moreover, it clearly reflects the conversion process of SAM to OAM. The
experimental results align well with simulation results. These findings hold
valuable insights for the advancement of optical information storage and
communication using OAM, opening up new possibilities for further exploration
in this field.
Many sub-Neptune exoplanets have been believed to be composed of a thick
hydrogen-dominated atmosphere and a high-temperature heavier-element-dominant
core. From an assumption that there is no chemical reaction between hydrogen
and silicates/metals at the atmosphere-interior boundary, the cores of
sub-Neptunes have been modeled with molten silicates and metals (magma) in
previous studies. In large sub-Neptunes, pressure at the atmosphere-magma
boundary can reach tens of gigapascals where hydrogen is a dense liquid. A
recent experiment showed that hydrogen can induce the reduction of Fe$^{2+}$ in
(Mg,Fe)O to Fe$^0$ metal at the pressure-temperature conditions relevant to the
atmosphere-interior boundary. However, it is unclear if Mg, one of the abundant
heavy elements in the planetary interiors, remains oxidized or can be reduced
by H. Our experiments in the laser-heated diamond-anvil cell found that heating
of MgO + Fe to 3500-4900 K (close to or above their melting temperatures) in a
H medium leads to the formation of Mg$_2$FeH$_6$ and H$_2$O at 8-13 GPa. At
26-29 GPa, the behavior of the system changes, and Mg-H in an H fluid and
H$_2$O were detected with separate FeH$_x$. The observations indicate the
dissociation of the Mg-O bond by H and subsequent production of hydride and
water. Therefore, the atmosphere-magma interaction can lead to a fundamentally
different mineralogy for sub-Neptune exoplanets compared with rocky planets.
The change in the chemical reaction at the higher pressures can also affect the
size demographics (i.e., "radius cliff") and the atmosphere chemistry of
sub-Neptune exoplanets.
In this study, we have comprehensively investigated the scaling law for
elastic properties of three-dimensional honeycomb-like graphenes (3D-graphenes)
using hybrid neural network potential based molecular dynamics simulations and
theoretical analyses. The elastic constants as functions of honeycomb hole
size, denoted by the graphene wall length $L$, were provided. All five
independent elastic constants in the large $L$ limit are proportional to
$L^{-1}$. The associated coefficients are combinations of two-dimensional
graphene's elastic constants. High-order terms including $L^{-2}$ and $L^{-3}$
emerge for finite $L$ values. They have three origins, the distorted areas
close to the joint lines of 3D-graphenes, the variation of solid angles between
graphene plates, and the bending distortion of graphene plates. Significantly,
the chirality becomes essential with the decreasing of $L$, because the joint
line structures are different between the armchair and zigzag type
3D-graphenes. Our findings provide insights into the elastic properties of
graphene-based superstructures and can be used for further studies on
graphene-based materials.
Monolayers of $AB$Te$_4$ ($A$/$B$ = Ti, Zr, Hf) were theoretically predicted
to be two-dimensional topological insulators, but little has been known about
the physical properties of these compounds. Here, we report on the single
crystal growth, bulk transport properties, and band structure calculations of
these compounds. The magnetotransport properties indicate that all three
compounds are multi-carrier systems. The experimental results of ZrTiTe$_4$ and
HfTiTe$_4$ can be well fitted by the multi-carrier formula assuming two types
of carriers, while three carrier components were necessary for HfZrTe$_4$.
Interestingly, one of the carrier mobilities of HfZrTe$_4$ exceeded 1000
cm$^2$V$^{-1}$s$^{-1}$, which was nearly one order in magnitude larger than the
carrier mobilities of ZrTiTe$_4$ and HfTiTe$_4$. Our band structure
calculations showed that all three compounds are semimetals consistent with the
magnetotransport properties. The band structure around the $\Gamma$-point of
HfZrTe$_4$ exhibits features that are distinct from the other two compounds,
which is likely the reason of the different carrier properties.
Over the last few decades, the study of Bound States in the Continuum, their
formation, and properties has attracted lots of attention, especially in optics
and photonics. It is particularly noticeable that most of these investigations
base their studies on symmetric systems. In this article, we study the
formation of bound states in the continuum in electronic and photonic transport
systems consisting of crossbar junctions formed by one-dimensional waveguides,
considering asymmetric junctions with commensurable lengths for the upper and
lower arms. We also study how BICs form in linear junction arrays as a function
of the distance between consecutive junctions and their commensurability with
the upper and lower arms. We solve the Helmholtz equation for the crossbar
junctions and calculate the transmission probability, probability density in
the intersections, and quality factor. The presence of quasi-BICs is reflected
in the transmission probability as a sharp resonance in the middle of a
symmetric Fano resonance along with Dirac's delta functions in the probability
density and divergence in the quality factors.
We report on the mechanism of energy transfer in van der Waals
heterostructures of the two-dimensional semiconductor WS$_2$ and graphene with
varying interlayer distances, achieved through spacer layers of hexagonal boron
nitride (hBN). We record photoluminescence and reflection spectra at interlayer
distances between 0.5 nm and 5.8 nm (0-16 hBN layers). We find that the energy
transfer is dominated by states outside the light cone, indicative of a
F\"orster transfer process, with an additional contribution from a Dexter
process at 0.5 nm interlayer distance. We find that the measured dependence of
the luminescence intensity on interlayer distances above 1 nm can be
quantitatively described using recently reported values of the F\"orster
transfer rates of thermalized charge carriers. At smaller interlayer distances,
the experimentally observed transfer rates exceed the predictions and
furthermore depend on excess energy as well as on excitation density. Since the
transfer probability of the F\"orster mechanism depends on the momentum of
electron-hole pairs, we conclude that at these distances, the transfer is
driven by non-thermalized charge carrier distributions.
We explore the ground state properties of a lattice of classical dipoles
spanned on the surface of a M\"{o}bius strip. The dipole equilibrium
configurations depend significantly on the geometrical parameters of the
M\"{o}bius strip, as well as on the lattice dimensions. As a result of the
variable dipole spacing on the curved surface of the M\"{o}bius strip, the
ground state can consist of multiple domains with different dipole orientations
which are separated by domain walls. We analyze in particular the dependence of
the ground state dipole configuration on the width of the M\"{o}bius strip and
highlight two crossovers in the ground state that can be correspondingly tuned.
A first crossover changes the dipole lattice from a phase which resists
compression to a phase that favors it. The second crossover leads to an
exchange of the topological properties of the two involved domains. We conclude
with a brief summary and an outlook on more complex topologically intricate
surfaces.
Quantum dynamics of a Dirac particle in a 1D box with moving wall is studied.
Dirac equation with time-dependent boundary condition is mapped onto that with
static one, but with time-dependent mass. Exact analytical solution of such
modified Dirac equation is obtained for massless particle. For massive particle
the problem is solved numerically. Time-dependences of the main characteristics
of the dynamical confinement, such as average kinetic energy and quantum force
are analyzed. It is found that the average kinetic energy remains bounded for
the interval length bounded from below, in particular for the periodically
oscillating wall.
Spin-1/2 kagome antiferromagnet (AFM) is one of the most studied models in
frustrated magnetism since it is a promising candidate to host exotic spin
liquid states. However, despite numerous studies using both analytical and
numerical approaches, the nature of the ground state and low-energy excitations
in this system remain elusive. This is related to the difficulty in determining
the spin gap in various calculations. We present the results of our
investigation of the Kagome AFM using the recently developed group equivariant
convolutional neural networks - an advanced machine learning technique for
studying strongly frustrated models. The approach, combined with variational
Monte Carlo, introduces significant improvement of the achievable results
accuracy in comparison with approaches based on other neural network
architectures that lack generalization quality for frustrated spin systems.
Contrary to the results obtained previously with various methods, that
predicted Z_2 or U(1) Dirac spin liquid states, our results strongly indicate
that the ground state of the kagome lattice antiferromagnet is a spinon pair
density wave that does not break time-reversal symmetry or any of the lattice
symmetries. The found state appears due to the spinon Cooper pairing
instability close to two Dirac points in the spinon energy spectrum and
resembles the pair density wave state studied previously in the context of
underdoped cuprate superconductors in connection with the pseudogap phase. The
state has significantly lower energy than the lowest energy states found by the
SU(2) symmetric density matrix renormalization group calculations and other
methods.
Strong correlations occur in magic-angle twisted bilayer graphene (MATBG)
when the octet of flat moir\'e minibands centered on charge neutrality (CN) is
partially occupied. The octet consists of a single valence band and a single
conduction band for each of four degenerate spin-valley flavors. Motivated by
the importance of Hartree electrostatic interactions in determining the
filling-factor dependent band structure, we use a time-dependent Hartree (GW)
approximation to gain insight into electronic correlations. We find that the
electronic compressibility is dominated by Hartree interactions, that
paramagnetic states are stable over a range of density near CN, and that the
dependence of energy on flavor polarization is strongly overestimated by
mean-field theory.
The dynamic-matrix method addresses the Landau-Lifshitz-Gilbert (LLG)
equation in the frequency domain by transforming it into an eigenproblem.
Subsequent numerical solutions are derived from the eigenvalues and
eigenvectors of the dynamic-matrix. In this work we explore discretization
methods needed to obtain a numerical representation of the dynamic-operator, a
foundational counterpart of the dynamic-matrix. Our approach opens a new set of
linear algebra tools for the dynamic-matrix method and expose the
approximations and limitations intrinsic to it. We present some application
examples, including a technique to obtain the dynamical matrix directly from
the magnetic free energy function of an ensemble of macrospins, and an
algorithmic method to calculate numerical micromagnetic kernels, including
plane wave kernels. Additionally, we also show how to exploit symmetries and
reduce the numerical size of micromagnetic dynamic-matrix problems by a change
of basis. This work contributes to the understanding of the current
magnetization dynamics methods, and could help the development and formulations
of novel analytical and numerical methods for solving the LLG equation within
the frequency domain.
We study the response of several microwave resonators made from
superconducting NbTiN thin-film meandering nanowires with large kinetic
inductance, having different circuit topology and coupling to the transmission
line. Reflection measurements reveal the parameters of the circuit and analysis
of their temperature dependence in the range 1.7-6 K extract the
superconducting energy gap and critical temperature. The lumped-element LC
resonator, valid in our frequency range of interest, allows us to predict the
quasiparticle contribution to internal loss, independent of circuit topology
and characteristic impedance. Our analysis shows that the internal quality
factor is limited not by thermal-equilibrium quasiparticles, but an additional
temperature-dependent source of internal microwave loss.
The observation of the magnon Hall effect (MHE) has relied solely on the
challenging measurement of the thermal Hall conductivity. Here, we report a
highly sensitive electrical Seebeck-contrast method for the observation of MHE
in Lu$_2$V$_2$O$_7$/heavy metal heterostructures, that is highly desirable for
the exploration of new MHE materials and their applications. Using measuring
wires with very different Seebeck coefficients, we established a general method
that can separate contributions (e.g., MHE) that generates a lateral
temperature drop, from those [e.g., anomalous Nernst effect (ANE) and spin
Seebeck effect (SSE)] that generate a lateral electric field. We show that a
suitable heavy metal overlayer can eliminate the inherent ANE and SSE signals
from the semiconducting Lu$_2$V$_2$O$_7$. The MHE in Lu$_2$V$_2$O$_7$ is
quasi-isotropic among crystals with different orientations. In addition to the
previously reported transverse MHE under an in-plane temperature gradient, we
have uncovered longitudinal MHE under an out-of-plane temperature gradient.
We propose a new type of helical topological superconductivity away from the
Fermi surface in three-dimensional time-reversal-symmetric odd-parity multiband
superconductors. In these systems, pairing between electrons originating from
different bands is responsible for the corresponding topological phase
transition. Consequently, a pair of helical topological Dirac surface states
emerges at finite excitation energies. These helical Dirac surface states are
tunable in energy by chemical potential and strength of band-splitting. They
are protected by time-reversal symmetry combined with crystalline two-fold
rotation symmetry. We suggest concrete materials in which this phenomenon could
be observed.
Flatbands play an important role in correlated quantum matter and have novel
applications in photonic lattices. Synthetic magnetic fields and destructive
interference in lattices are traditionally used to obtain flatbands. However,
such methods can only obtain a few flatbands with most bands remaining
dispersive. Here we realize all-band-flat photonic lattices of an arbitrary
size by precisely controlling the coupling strengths between lattice sites to
mimic those in Fock-state lattices. This allows us to go beyond the
perturbative regime of strain engineering and group all eigenmodes in
flatbands, which simultaneously achieves high band flatness and large usable
bandwidth. We map out the distribution of each flatband in the lattices and
selectively excite the eigenmodes with different chiralities. Our method paves
a new way in controlling band structure and topology of photonic lattices.
The black-hole laser (BHL) effect is the self-amplification of Hawking
radiation between a pair of horizons which act as a resonant cavity. In a
flowing atomic condensate, the BHL effect arises in a finite supersonic region,
where Bogoliubov-Cherenkov-Landau (BCL) radiation is resonantly excited by any
static perturbation. Thus, experimental attempts to produce a BHL unavoidably
deal with the presence of a strong BCL background, making the observation of
the BHL effect still a major challenge in the analogue gravity field. Here, we
perform a theoretical study of the BHL-BCL crossover using an idealized model
where both phenomena can be unambiguously isolated. By drawing an analogy with
an unstable pendulum, we distinguish three main regimes according to the
interplay between quantum fluctuations and classical stimulation: quantum BHL,
classical BHL, and BCL. Based on quite general scaling arguments, the nonlinear
amplification of quantum fluctuations up to saturation is identified as the
most robust trait of a quantum BHL. A classical BHL behaves instead as a linear
quantum amplifier, where the output is proportional to the input. The BCL
regime also acts as a linear quantum amplifier, but its gain is exponentially
smaller as compared to a classical BHL. Complementary signatures of black-hole
lasing are a decrease in the amplification for increasing BCL amplitude or a
nonmonotonic dependence of the growth rate with respect to the background
parameters. We also identify interesting analogue phenomena such as
Hawking-stimulated white-hole radiation or quantum BCL-stimulated Hawking
radiation. The results of this work not only are of interest for analogue
gravity, where they help to distinguish each phenomenon and to design
experimental schemes for a clear observation of the BHL effect, but they also
open the prospect of finding applications of analogue concepts in quantum
technologies.
Re-configurable materials and meta-materials can jump between space symmetry
classes during their deformations. Here, we introduce the concept of singular
symmetry enhancement, which refers to an abrupt jump to a higher symmetry class
accompanied by an un-avoidable reduction in the number of dispersion bands of
the excitations of the material. Such phenomenon prompts closings of some of
the spectral resonant gaps along singular manifolds in a parameter space. In
this work, we demonstrate that these singular manifolds carry topological
charges. As a concrete example, we show that a deformation of an acoustic
crystal that encircles a $p11g$-symmetric configuration of the cavity
resonators results in an adiabatic cycle that carries a Chern number in the
bulk and displays Thouless pumping at the edges. The outcome is a very general
principle for recognizing or engineering topological adiabatic processes in
complex materials and meta-materials.
In Landau's Fermi liquid picture, transport is governed by scattering between
quasi-particles. The normal liquid $^3$He conforms to this picture but only at
very low temperature. Here, we observe that the deviation from the standard
behavior is concomitant with the fermion-fermion scattering time falling below
the Planckian time, $\frac{\hbar}{k_{\rm B}T}$. We also observe that thermal
diffusivity of this quantum liquid is bounded by a minimum set by fundamental
physical constants, similarly to what was observed in classical liquids
earlier. This points to collective excitations (a sound mode) as carriers of
heat. We propose that this mode has a wavevector of 2$k_F$ and a mean free path
equal to the de Broglie thermal length. This would provide an additional
conducting channel with a $T^{1/2}$ temperature dependence, matching what is
observed by experiments. Within a margin of 10\%, the experimental data from
0.007 K to 3 K can be accounted for if thermal conductivity is the sum of
contributions from quasiparticles and sound: $\kappa=\kappa_{qp}+\kappa_s$;
$\kappa_{qp}\propto T^{-1}$; $\kappa_s\propto T^{1/2}$.
We investigate topological Hall effects in a metallic antiferromagnetic (AFM)
thin film and/or at the interface of an AFM insulator-normal metal bilayer with
a single skyrmion in the diffusive regime. To determine the spin and charge
Hall currents, we employed a Boltzmann kinetic equation with both
spin-dependent and spin-flip scatterings. The interaction between conduction
electrons and static skyrmions is included in the Boltzmann equation via the
corresponding emergent magnetic field arising from the skyrmion texture. We
compute intrinsic and extrinsic contributions to the topological spin Hall
effect and spin accumulation, induced by an AFM skyrmion. We show that although
the spin Hall current vanishes rapidly outside the skyrmion, the spin
accumulation can be finite at the edges far from the skyrmion, provided the
spin diffusion length is longer than the skyrmion radius. In addition, We show
that in the presence of a spin-dependent relaxation time, the topological
charge Hall effect is finite and we determine the corresponding Hall voltage.
Our results may help to explore antiferromagnetic skyrmions by electrical means
in real materials.
We study the second-order optical response of Weyl semimetals in the presence
of a magnetic field. We consider an idealized model of a perfectly linear Weyl
node and use the Kubo formula at zero temperature to calculate the intrinsic
contribution to photocurrent and second harmonic generation conductivity
components. We obtain exact analytical expressions applicable at arbitrary
values of frequency, chemical potential, and magnetic field. Our results show
that finite magnetic field significantly enhances the nonlinear optical
response in semimetals, while magnetic resonances lead to divergences in
nonlinear conductivity. In realistic systems, these singularities are
regularized by a finite scattering rate, but result in pronounced peaks which
can be detected experimentally, provided the system is clean and interactions
are weak. We also perform a semiclassical calculation that complements and
confirms our microscopic results at small magnetic fields and frequencies.
We present theoretical and experimental studies of superconductivity and low
temperature structural phase boundaries in lithium. We mapped the structural
phase diagram of 6Li and 7Li under hydrostatic conditions between 5 top 55GPa
and within the temperature range of 15 to 75K, observing the FCC-hR1-cI16 phase
transitions. 6Li and 7Li show some differences at the structural boundaries,
with a potential shift of the phase boundaries of 6Li to lower pressures.
Density functional theory calculations and topological analysis of the electron
density elucidates the superconducting properties and interatomic interactions
within these phases of lithium.
Recently, the Floquet ${\rm Na_3Bi}$-type material has been proposed as an
ideal platform for realizing various phases, i.e., the spin-degenerate Dirac
semimetal (DSM) can be turned into the Weyl semimetal (WSM), and even to the
Weyl half-metal (WHM). Instead of the conventional electrical methods, we use
the RKKY interaction to characterize the topological phase transitions in this
paper. It is found that detecting the Ising term $J_I$ is feasible for
distinguishing the phase transition of DSM/WSM, since the emergence of $J_I$ is
induced by the broken spin degeneracy. For the case with impurities deposited
on $z$ axis (the line connecting the Weyl points), the Heisenberg term $J_H$
coexists with $J_I$ in the WSM, while $J_H$ is filtered out and only $J_I$
survives in the WHM. This magnetic filtering effect is a reflection of the
fully spin-polarized property (one spin band is in the WSM phase while the
other is gapped) of the WHM, and it can act a signal to capture the phase
transition of WSM/WHM. This signal can not be disturbed unless the direction of
the impurities greatly deviates from $z$ axis. Interestingly, as the impurities
are moved into the $x$-$y$ plane, there arises another signal (a dip structure
for $J_H$ at the phase boundary), which can also identify the phase transition
of WSM/WHM. Furthermore, we have verified that all magnetic signals are robust
to the term that breaks the electron-hole symmetry. Besides characterizing the
phase transitions, our results also suggest that the Floquet DSMs are power
platforms for controlling the magnetic interaction.

Date of feed: Mon, 08 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) **Stiffer alginate gels deposit more efficiently in microchannel flows. (arXiv:2401.02530v1 [cond-mat.soft])**

Barrett T Smith, Sara M Hashmi

**On topological order in higher composites. (arXiv:2401.02551v1 [cond-mat.quant-gas])**

Egor Babaev

**Distinguishing the Topological Charge of Vortex Beam via Fourier Back Plane Imaging with Chiral Gammadion Structure. (arXiv:2401.02587v1 [physics.optics])**

Yangzhe Guo, Jing Li, Yurui Fang

**Stability of Hydrides in Sub-Neptune Exoplanets with Thick Hydrogen-Rich Atmospheres. (arXiv:2401.02637v1 [astro-ph.EP])**

Taehyun Kim, Xuehui Wei, Stella Chariton, Vitali B. Prakapenka, Young-Jay Ryu, Shize Yang, Sang-Heon Shim

**Scaling Laws Governing the Elastic Properties of 3D-Graphenes. (arXiv:2401.02689v1 [cond-mat.mtrl-sci])**

Ming Li, Guo Lu, Haodong Yu, Menglei Li, Fawei Zheng

**Single Crystal Growth and Transport Properties of van der Waals Materials $AB$Te$_\mathbf{4}$ ($A/B$ = Ti, Zr, Hf). (arXiv:2401.02704v1 [cond-mat.mtrl-sci])**

Yuto Hasuo, Takahiro Urata, Masaaki Araidai, Yuji Tsuchiya, Satoshi Awaji, Hiroshi Ikuta

**Beyond symmetry-protected BICs: transmission through asymmetric crossbar junctions in one-dimensional waveguides. (arXiv:2401.02707v1 [physics.optics])**

Sofía Pinto, Rafael A. Molina, Pedro A. Orellana

**Distance dependence of the energy transfer mechanism in WS$_2$-graphene heterostructures. (arXiv:2401.02716v1 [cond-mat.mes-hall])**

David Tebbe, Marc Schütte, K. Watanabe, T. Taniguchi, Christoph Stampfer, Bernd Beschoten, Lutz Waldecker

**Compression-induced crossovers for the ground-state of classical dipole lattices on a M\"obius strip. (arXiv:2401.02748v1 [cond-mat.mes-hall])**

Ansgar Siemens (1), Felipe Augusto Oliveira Silveira (2), Peter Schmelcher (1 and 3) ((1) Zentrum für Optische Quantentechnologien, Fachbereich Physik, Universität Hamburg, (2) Departamento de Física, UNESP - Universidade Estadual Paulista, (3) Hamburg Center for Ultrafast Imaging, Universität Hamburg)

**Dirac particle under dynamical confinement: Fermi acceleration, trembling motion and quantum force. (arXiv:2401.02837v1 [quant-ph])**

J. Dittrich, S. Rakhmanov, D. Matrasulov

**Spin-1/2 kagome Heisenberg antiferromagnet: Machine learning discovery of the spinon pair density wave ground state. (arXiv:2401.02866v1 [cond-mat.str-el])**

Tanja Duric, Jia Hui Chung, Bo Yang, Pinaki Sengupta

**GW Theory of Magic-Angle Twisted Bilayer Graphene. (arXiv:2401.02872v1 [cond-mat.str-el])**

Jihang Zhu, Iacopo Torre, Marco Polini, Allan H. MacDonald

**Solutions to the Landau-Lifshitz-Gilbert equation in the frequency space: Discretization schemes for the dynamic-matrix approach. (arXiv:2401.02933v1 [physics.comp-ph])**

D. E. Gonzalez-Chavez, G. P. Zamudio, R. L. Sommer

**Temperature dependence of microwave losses in lumped-element resonators made from superconducting nanowires with high kinetic inductance. (arXiv:2401.02943v1 [cond-mat.mes-hall])**

Ermes Scarano, Elisabet K. Arvidsson, August K. Roos, Erik Holmgren, David B. Haviland

**Electrical Seebeck-Contrast Observation of Magnon Hall Effect in Topological Ferromagnet Lu$_2$V$_2$O$_7$/Heavy Metal Heterostructures. (arXiv:2210.06606v2 [cond-mat.mtrl-sci] UPDATED)**

Jinsong Xu, Jiaming He, J.-S. Zhou, Danru Qu, Ssu-Yen Huang, C. L. Chien

**New type of helical topological superconducting pairing at finite excitation energies. (arXiv:2210.11955v4 [cond-mat.mes-hall] UPDATED)**

Masoud Bahari, Song-Bo Zhang, Chang-An Li, Sang-Jun Choi, Carsten Timm, Björn Trauzettel

**Realization of all-band-flat photonic lattices. (arXiv:2305.05906v2 [physics.optics] UPDATED)**

Jing Yang, Yuanzhen Li, Yumeng Yang, Xinrong Xie, Zijian Zhang, Jiale Yuan, Han Cai, Da-Wei Wang, Fei Gao

**The BHL-BCL crossover: from nonlinear to linear quantum amplification. (arXiv:2306.05458v3 [cond-mat.quant-gas] UPDATED)**

Juan Ramón Muñoz de Nova, Fernando Sols

**Pumping with Symmetry. (arXiv:2306.16401v2 [cond-mat.mtrl-sci] UPDATED)**

Julio Andrés Iglesias Martínez, Muamer Kadic, Vincent Laude, Emil Prodan

**How heat propagates in liquid $^3$He. (arXiv:2309.00502v3 [cond-mat.stat-mech] UPDATED)**

Kamran Behnia, Kostya Trachenko

**Skyrmion-deriven topological spin and charge Hall effects in diffusive antiferromagnetic thin films. (arXiv:2309.08763v2 [cond-mat.mes-hall] UPDATED)**

Amir N. Zarezad, Józef Barnaś, Anna Dyrdał, Alireza Qaiumzadeh

**Magnetic field induces giant nonlinear optical response in Weyl semimetals. (arXiv:2310.02578v2 [cond-mat.mes-hall] UPDATED)**

Grigory Bednik, Vladyslav Kozii

**Phase Boundaries, Isotope Effect and Superconductivity of Lithium Under Hydrostatic Conditions. (arXiv:2312.17498v2 [cond-mat.supr-con] UPDATED)**

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**RKKY signals characterizing the topological phase transitions in Floquet Dirac semimetals. (arXiv:2401.01111v3 [cond-mat.mes-hall] UPDATED)**

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