Found 25 papers in cond-mat Topological insulators exhibit fascinating properties such as the appearance
of edge states protected by symmetries. The Su-Schrieffer-Heeger (SSH) model is
a canonical description of a one-dimensional quantum topological insulator. We
experimentally implement a modified SSH model with long-range interacting spin
systems in one-dimensional trapped ion crystals of up to $22$ spins. An array
of tightly focused laser beams generates site-specific Floquet fields that
control the bond dimerization of the spins, which when subject to reflection
symmetry, exhibit signatures of topologically-protected edge states. We study
the evolution of highly excited configurations with various ranges of the
spin-spin interaction, revealing the nontrivial role of many-body
fermionic-interaction terms on the resulting dynamics. These results allow
direct quantum simulations of topological quantum degrees of freedom expected
in exotic materials, but here with high control of individual spins and their
interaction range.
Spontaneous Hall conductivity has recently been reported in the triangular
lattice antiferromagnet Co$_{1/3}$TaS$_2$ under a zero magnetic field. This
phenomenon originates from the distinctive noncoplanar triple-Q magnetic ground
state, possessing uniform real-space Berry curvature characterized by scalar
spin chirality. We investigated the physical properties of Co$_{1/3}$TaS$_2$ by
judiciously controlling the composition, revealing a drastic change in its bulk
properties, even by slight variations in cobalt composition, despite the same
crystal structure. For $0.299 < x < 0.325$, Co$_x$TaS$_2$ keeps all the
characteristics of the ground state consistent with the previous studies -- two
antiferromagnetic phase transitions at $T_{N1}$ and $T_{N2} (< T_{N1})$, a
large spontaneous Hall conductivity (${\sigma}_{xy} (H=0)$), and a weak
ferromagnetic moment along the c-axis. However, samples with $x > 0.330$
exhibit distinct bulk properties, including the absence of both ${\sigma}_{xy}
(H=0)$ and the weak ferromagnetic moment. Our neutron diffraction data reveal
that Co$_x$TaS$_2$ with $x > 0.330$ develops coplanar helical magnetic order
with $q_{m1} = (1/3, 0, 0)$. This is entirely different from what has been seen
in $x < 0.325$, explaining the observed composition dependence.
YbB$_6$ is a predicted topological insulator, with experimental evidence for
conducting surface states of yet-unproven origin. However, its lack of a
natural cleavage plane, and resultant surface-dependent polarity, has obscured
its study. We use scanning tunneling microscopy to image the cleaved surface of
YbB$_6$, exhibiting several coexisting terminations with distinct atomic
structures. Our spectroscopic measurements show band-bending between the
terminations, resulting in both conducting and fully-gapped regions. In the
conductive regions, we observe spectral peaks that are suggestive of van Hove
singularities arising from Rashba spin-split quantum well states. The
insulating regions rule out the possibility that YbB$_6$ is a strong
topological insulator, while the spin-polarized conducting regions suggest
possible utility for spintronic devices.
GaAs(111)B is a semiconductor substrate widely used in research and
commercial fields due to its low cost, mature synthesis technology, and
excellent properties for manufacturing electronic devices. It is not only used
to grow three-dimensional (3D) strongly-bonded materials, but has also been
used as a substrate for layered, van der Waals (vdW)-bonded chalcogenide film
growth. However, GaAs(111)B wafers cannot be directly used for growing
epitaxial vdW chalcogenide films for two reasons: (1) the GaAs surface has a
substantial number of dangling bonds that need to be passivated for vdW layers
growth; (2) the substrate surface is covered with a thin epi-ready oxide layer
which must be removed before film growth. In this paper, we optimize the method
for deoxidizing GaAs(111)B substrates under a Se overpressure and successfully
create a smooth, deoxidized, and passivated substrate for subsequent growth of
vdW chalcogenide materials. We demonstrate the benefits of this method for the
growth of vdW chalcogenide thin films using GaSe as a representative of vdW
chalcogenides. In addition, we find that severely aged substrates have
difficulty maintaining a smooth surface during the deoxidation and passivation
process and cause GaSe crystals to nucleate in random shapes and orientations.
We describe a method using water droplet testing to determine the age of the
substrate. Finally, X-ray photoelectron spectroscopy (XPS) characterization
reveals that the natural aging of GaAs(111)B in the air results in an increase
in surface oxides, Ga2O3 and As2O3, while exposure to ultraviolet (UV)-ozone
not only enhances the contents of these two oxides but also generates a new
oxide, As2O5. Our research contributes to expanding the compatibility of
GaAs(111)B with diverse growth materials and the production of high-quality
heterostructure devices.
Quantum point contacts (QPCs) are an essential component in mesoscopic
devices. Here, we study the transmission of quantum Hall edge modes through a
gate-defined QPC in monolayer graphene. We observe resonant tunneling peaks and
a nonlinear conductance pattern characteristic of Coulomb-blockaded localized
states. The in-plane electric polarizability reveals the states are localized
at a classically-unstable electrostatic saddle point. We explain this
unexpected finding within a self-consistent Thomas-Fermi model, finding that
localization of a zero-dimensional state at the saddle point is favored
whenever the applied confinement potential is sufficiently soft compared to the
Coulomb energy. Our results provide a direct demonstration of Coulomb-driven
reconstruction at the boundary of a quantum Hall system.
We study the band structure and quantum transport of MoS2 on a
nanometer-scale periodic potential under magnetic fields. Using the continuum
model, we compute the band structure of the system with and without magnetic
fields. We found the formation of a self-similar fractal band gaps for values
of the magnetic field of about 1 T. Additionally, we simulate the quantum
transport along a realistic two-terminal device affected by the same potential
and find a remarkably good consistency between these two approaches. Our
results can be extended to provide a theoretical understanding on the transport
phenomenon on transition metal-dichalcogenides.
Topological polaritons characterized by light-matter interactions have become
a pivotal platform in exploring new topological phases of matter. Recent
theoretical advances unveiled a novel mechanism for tuning topological phases
of polaritons by modifying the surrounding photonic environment (light-matter
interactions) without altering the lattice structure. Here, by embedding a
dimerized chain of microwave helical resonators (electric dipole emitters) in a
metallic cavity waveguide, we report the pioneering observation of tunable
topological phases of polaritons by varying the cavity width which governs the
surrounding photonic environment and the strength of light-matter interactions.
Moreover, we experimentally identified a new type of topological phase
transition which includes three non-coincident critical points in the parameter
space: the closure of the polaritonic bandgap, the transition of the Zak phase,
and the hybridization of the topological edge states with the bulk states.
These results reveal some remarkable and uncharted properties of topological
matter when strongly coupled to light and provide an innovative design
principle for tunable topological photonic devices.
Magnetically frustrated spin systems compose a significant proportion of
topological quantum spin liquid candidates. Evidence for spin liquids in these
materials comes largely from the detection of fractionalised spin-1/2
quasiparticles, known as spinons. However, the one-dimensional Heisenberg
chain, which is topologically trivial, also hosts spinons. Thus, observing
spinons does not necessarily signify long-range entanglement. Here, we show
that spinons arising from one-dimensional physics leave a clear fingerprint in
magnetic Raman scattering. We achieve this by calculating the magnetic Raman
intensity of coupled Heisenberg chains. Our findings are in excellent agreement
with the magnetic Raman scattering measurements on the anisotropic triangular
antiferromagnet Ca$_3$ReO$_5$Cl$_2$.
We study the stability and characteristics of two-dimensional (2D)
quasi-isotropic quantum droplets (QDs) of fundamental and vortex types, formed
by binary Bose-Einstein condensate with magnetic quadrupole-quadrupole
interactions (MQQIs). The magnetic quadrupoles are built as pairs of dipoles
and antidipoles polarized along the x-axis. The MQQIs are induced by applying
an external magnetic field that varies along the x-axis. The system is modeled
by the Gross-Pitaevskii equations including the MQQIs and Lee-Huang-Yang
correction to the mean-field approximation. Stable 2D fundamental QDs and
quasi-isotropic vortex QDs with topological charges S<4 are produced by means
of the imaginary-time-integration method for configurations with the
quadrupoles polarized parallel to the systems two-dimensional plane. Effects of
the norm and MQQI strength on the QDs are studied in detail. Some results,
including an accurate prediction of the effective area, chemical potential, and
peak density of QDs, are obtained in an analytical form by means of the
Thomas-Fermi approximation. Collisions between moving QDs are studied by means
of systematic simulations.
Electromagnetic wave coupling between photonic systems relies on the
evanescent field typically confined within a single wavelength. Extending
evanescent coupling distance requires low refractive index contrast and perfect
momentum matching for achieving a large coupling ratio. Here, we report the
discovery of photonic supercoupling in a topological valley Hall pair of
waveguides, showing a substantial improvement in coupling efficiency across
multiple wavelengths. Experimentally, we realize ultra-high coupling ratios
between waveguides through valley-conserved vortex flow of electromagnetic
energy, attaining 95% coupling efficiency for separations of up to three
wavelengths. This demonstration of photonic supercoupling in topological
systems significantly extends the coupling distance between on-chip waveguides
and components, paving the path for the development of supercoupled photonic
integrated devices, optical sensing, and telecommunications.
We critically discuss the results reported in arXiv:2311.17994v1 by L.
Oppenheim, M. Koch-Janusz, S. Gazit, and Z. Ringel, on the multicritical
behavior of the three-dimensional Ising-Gauge model at the multicritical point.
We argue that their results do not contradict the theoretical scenario put
forward in ``Multicritical point of the three-dimensional ${\mathbb Z}_2$ gauge
Higgs model'', Phys. Rev. B 105, 165138 (2022), arXiv:2112.01824, that
predicted a multicritical behavior controlled by the stable $XY$ fixed point of
an effective three-dimensional ${\mathbb Z}_2\oplus {\mathbb Z}_2$
Landau-Ginzburg-Wilson $\Phi^4$ field theory. Actually, their results, as well
as all numerical results reported so far in the literature, are consistent with
a multicritical $XY$ scenario.
Spurred by recent development of fracton topological phases, unusual
topological phases possessing fractionalized quasi-particles with mobility
constraints, the concept of symmetries has been renewed. In particular, in
accordance with the progress of multipole symmetries, associated with
conservation of multipoles, such as dipole or quadruple moments as well as
global charges, there have been proposed topological phases with such
symmetries. These topological phases are unconventional as excitations are
subject to mobility constraints corresponding to the multipole symmetries. We
demonstrate a way to construct such phases by preparing layers of symmetry
protected topological (SPT) phases and implementing gauging a global symmetry.
After gauging, the statistics of a fractional excitation is altered when
crossing the SPT phases, resulting in topological phases with the multipole
symmetries. The way we construct the phases allows us to have a comprehensive
understanding of field theories of topological phases with the multipole
symmetries and other fracton models.
Iron-chalcogenide superconductors display rich phenomena caused by
orbital-dependent band shifts and electronic correlations. Additionally, they
are potential candidates for topological superconductivity due to the band
inversion between the Fe $d$ bands and the chalcogen $p_z$ band. Here we
present a detailed study of the electronic structure of the nematic
superconductors FeSe$_{1-x}$Te$_x$ ($0<x<0.4$) using angle-resolved
photoemission spectroscopy to understand the role of orbital-dependent band
shifts, electronic correlations and the chalcogen band. We assess the changes
in the effective masses using a three-band low energy model, and the band
renormalization via comparison with DFT band structure calculations. The
effective masses decrease for all three-hole bands inside the nematic phase
followed by a strong increase for the band with $d_{xy}$ orbital character.
Interestingly, this nearly-flat $d_{xy}$ band becomes more correlated as it
shifts towards the Fermi level with increasing Te concentrations and as the
second superconducting dome emerges. Our findings suggests that the $d_{xy}$
hole band, which is very sensitive to the chalcogen height, could be involved
in promoting an additional pairing channel and increasing the density of states
to stabilize the second superconducting dome in FeSe$_{1-x}$Te$_x$. This
simultaneous shift of the $d_{xy}$ hole band and enhanced superconductivity is
in contrast with FeSe$_{1-x}$S$_x$.
The primitive-path analysis (PPA) {[}R. Everaers et al. Science 303, 823,
(2004){]} is an algorithm that transforms a model polymer melt into its
topologically equivalent mesh by removing excess contour length stored in
thermal fluctuations. Here we present an inverse PPA algorithm that gradually
reintroduces contour length in a PPA mesh to produce an topologically
equilvalent polymer melt. This enables the generation of model polymer
materials with well controlled topology. As an illustration, we generate
knitted model polymer materials with a 2D cubic lattice of entanglement points
using a synthetic PPA mesh as a starting point. We also show how to combine PPA
and inverse PPA to accelerate stress relaxation approximately by an order of
magnitude in simulation time. This reduces the computational cost of
computational studies of structure-property relations for polymer materials.
The Luttinger model is a paradigm for the breakdown due to interactions of
the Fermi liquid description of one-dimensional massless Dirac fermions.
Attempts to discretize the model on a one-dimensional lattice have failed to
reproduce the established bosonization results, because of the fermion-doubling
obstruction: A local discretization of the Hamiltonian introduces a spurious
second species of low-energy excitations, while a nonlocal discretization opens
a single-particle gap at the Dirac point. Here we show how to work around this
obstruction, by discretizing both space and time to obtain a local action for a
helical Luttinger liquid with Hubbard interaction. The approach enables quantum
Monte Carlo simulations of interacting relativistic fermions.
Topology, like symmetry, is a fundamental concept in understanding general
properties of physical systems. In condensed matter systems, non-trivial
topology may manifest itself as singular features in the energy spectrum or the
quantization of observable quantities such as electrical conductance and
magnetic flux. Using microwave spectroscopy, we show that a superconducting
circuit with three Josephson tunnel junctions in parallel can possess energy
degeneracies indicative of $\textrm{\emph{intrinsic}}$ non-trivial topology. We
identify three topological invariants, one of which is related to a hidden
quantum mechanical supersymmetry. Depending on fabrication parameters, devices
are gapless or not, and fall on a simple phase diagram which is shown to be
robust to perturbations including junction imperfections, asymmetry, and
inductance. Josephson tunnel junction circuits, which are readily fabricated
with conventional microlithography techniques, allow access to a wide range of
topological systems which have no condensed matter analog. Notable spectral
features of these circuits, such as degeneracies and flat bands, may be
leveraged for quantum information applications, whereas quantized transport
properties could be useful for metrology applications.
Finding distinct signatures of a quantum spin liquid (QSL) is an ongoing
quest in condensed matter physics, invariably complicated by the presence of
disorder in real materials. In this regard the 2D Kagome system
YCu$_3$(OH)$_6$[(Cl$_x$Br$_{(1-x)}$)$_{3-y}$(OH)$_y$] (YCOB-Cl), where the vast
mismatch in size of Y and Cu avoids subsitutional disorder, otherwise present
in kagome materials, has emerged as a favorable candidate. In crystals of this
system, with $x<$ 0.4 and no long range order, we report an unusual field
dependent magnetization $M(B)$, where $M/B$ changes linearly with $|B|$, the
absolute value of the field, in contrast to the expected quadratic behavior.
Model calculations with a distribution of ferromagnetic (FM) clusters
faithfully capture observed features suggesting such clusters to be intrinsic
to real QSL materials. YCOB-Cl has a field enhanced $T^2$ heat capacity as
expected for a Dirac QSL but lacks a linear $T$ behavior in the spin
susceptibility. By demonstrating that FM clusters dominate the contribution to
the susceptibility but not the heat capacity, our work paves the way towards
reconciling the apparent inconsistency with a Dirac QSL.
Charge transfer between atoms is fundamental to chemical bonding but has
remained very challenging to detect directly in real space. Atomic-resolution
imaging of charge density is not sufficient by itself, as the change in the
density due to bonding is very subtle compared to the total local charge
density. Sufficiently high sensitivity, precision and accuracy are required,
which we demonstrate here for the detection of charge transfer at defects in
two-dimensional WS\textsubscript{2} via high-speed electron ptychography and
its ability to correct errors due to residual lens aberrations.
The phase distribution in a Bose-Einstein condensate can realize various
topological states which can be classified according to distinct winding
numbers. While states with different winding numbers are topologically
protected in the linear Schr\"odinger equation, when nonlinearities are
introduced, violations of the topological protection can occur, leading to
unwinding. Exciton-polariton condensates constitute a weakly nonlinear
open-dissipative system that is well suited to studying such physics. Here we
show that a one-dimensional array of exciton-polariton condensates displays a
spontaneous phase unwinding from a $\pi$- to zero-state. We clarify that this
collective mode transition is caused by the combined effect of nonlinearity and
topological defects in the condensates. While the mode-switching phenomenon
previously observed in our experiment [C.W. Lai $\it et \ al.$, Nature (London)
$\bf 450$, 529 (2007)] was interpreted as the single-particle mode competition,
we offer a new explanation in terms the collective phase unwinding of
metastable states. Reanalyzing the experimental data, we find an evidence of
the collective phase unwinding. Our results open a route towards active control
of the mode switching of exciton-polariton condensates by manipulating the
topological defects, which may be employed as one of the basic technologies of
prospective quantum polaritonic devices.
We present experimental and theoretical results on formation of quantum
vortices in a laser beam propagating in a nonlinear medium. Topological
constrains richer than the mere conservation of vorticity impose an elaborate
dynamical behavior to the formation and annihilation of vortex-antivortex
pairs. We identify two such mechanisms, both described by the same fold-Hopf
bifurcation. One of them is particularly efficient although it is not observed
in the context of liquid helium films or stationary systems because it relies
on the compressible nature of the fluid of light we consider and on the
non-stationarity of its flow.
Few-layer graphene possesses low-energy carriers which behave as massive
fermions, exhibiting intriguing properties in both transport and light
scattering experiments. Lowering the excitation energy of resonance Raman
spectroscopy down to 1.17 eV we target these massive quasiparticles in the
split bands close to the K point. The low excitation energy weakens some of the
Raman processes which are resonant in the visible, and induces a clearer
frequency-separation of the sub-structures of the resonance 2D peak in bi- and
trilayer samples. We follow the excitation-energy dependence of the intensity
of each sub-structure and, comparing experimental measurements on bilayer
graphene with ab initio theoretical calculations, we trace back such
modifications on the joint effects of probing the electronic dispersion close
to the band splitting and enhancement of electron-phonon matrix elements.
Due to the recent studies of the fracton topological phases, which host
deconfined quasi-particle excitations with mobility restrictions, the concept
of symmetries have been updated. Focusing on one of such new symmetries,
multipole symmetries, including global, dipole, and quadruple symmetries, and
gauge fields associated with them, we construct a new sets of $\mathbb{Z}_N$
$2+1d$ foliated BF theories, where BF theories of conventional topological
phases are stacked in layers with couplings between them. By investigating
gauge invariant non-local operators, we show that our foliated BF theories
exhibit unusual ground state degeneracy depending on the system size; it
depends on the greatest common divisor between $N$ and the system size. Our
result provides a unified insight on UV lattice models of the fracton
topological phases and other unconventional ones in view of foliated field
theories.
We theoretically investigate the double-resonance Raman spectrum of monolayer
graphene down to infrared laser excitation energies. By using first-principles
density functional theory calculations, we improve upon previous theoretical
predictions based on conical models or tight-binding approximations, and
rigorously justify the evaluation of the electron-phonon enhancement found in
Ref. [Venanzi, T., Graziotto, L. et al., Phys. Rev. Lett. 130, 256901 (2023)].
We proceed to discuss the effects of such enhancement on the room temperature
graphene resistivity, hinting towards a possible reconciliation of theoretical
and experimental discrepancies.
In the $R$Al(Si,Ge) ($R$: lanthanides) family, both spatial inversion and
time-reversal symmetries are broken. This may offer opportunities to study
Weyl-fermion physics in nontrivial spin structures emerging from a
noncentrosymmetric crystal structure. In this study, we investigated the
anomalous Hall effect (AHE) in NdAlGe via magnetotransport, magnetization, and
magnetic torque measurements down to 40 mK (0.4 K for magnetization). The
single crystals grown by a laser-heated floating-zone method exhibit a single
magnetic phase transition at $T_{\rm M}$ = 13.5 K, where the $T_{\rm M}$ is the
transition temperature. With the magnetic field parallel to the easy
$\lbrack$001$\rbrack$ axis, the AHE gradually evolves as the temperature
decreases below $T_{\rm M}$. The anomalous Hall conductivity (AHC) reaches
$\sim$320 $\Omega^{-1}$cm$^{-1}$ at 40 mK in the magnetically saturated state.
Except in low-temperature low-field plateau phases, the AHC and magnetization
are proportional, and their ratio agrees with the ratios for conventional
ferromagnets, suggesting that the intrinsic AHE occurs by the Karplus-Luttinger
mechanism. Below $\sim$0.6 K, the curves of Hall resistivity against the field
exhibit plateaus at low fields below $\sim$0.5 T, correlating with the plateaus
in the magnetization curve. For the first plateau, the magnetization is one
order of magnitude smaller than the magnetically saturated state, whereas the
AHE is more than half that in the saturated state. This finding under well
below $T_{\rm M}$ suggests that the AHE at the first plateau is not governed by
the magnetization and may be interpreted based on a multipole or spin
chirality.
The concept of valleytronics has recently gained considerable research
attention due to its intriguing physical phenomena and practical applications
in optoelectronics and quantum information. In this study, by employing GW-BSE
calculations and symmetry analysis, we demonstrate that single-layer
orthorhombic SnS and SnSe possess high carrier mobility and exceptional
excitonic effects. Especially, these materials display spontaneous linearly
polarized optical selectivity, a behavior that differs from the
valley-selective circular dichroism observed in the hexagonal lattices.
Specifically, when subjected to a zigzag polarization of light, only the A
exciton (stemming from the X valley) becomes optically active, while the B
exciton (arising from the Y valley) remains dark. The armchair-polarized light
triggers the opposite behavior. This selective optical excitation arises from
the symmetry of the bands under mirror symmetry. Additionally, the study
reveals a strong coupling between valley physics and ferroelectricity in
layered tin chalcogenides, enabling the manipulation of electronic transport
and exciton polarization. Layered tin chalcogenides thus emerge as promising
candidates for both valleytronic and ferroelectric materials.

Date of feed: Mon, 22 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) **Observing Topological Insulator Phases with a Programmable Quantum Simulator. (arXiv:2401.10362v1 [quant-ph])**

Or Katz, Lei Feng, Diego Porras, Christopher Monroe

**Composition dependence of bulk properties in the Co-intercalated transition-metal dichalcogenide Co$_{1/3}$TaS$_2$. (arXiv:2401.10421v1 [cond-mat.str-el])**

Pyeongjae Park, Woonghee Cho, Chaebin Kim, Yeochan An, Maxim Avdeev, Kazuki Iida, Ryoichi Kajimoto, Je-Geun Park

**Nanoscale Conducting and Insulating Domains on YbB$_6$. (arXiv:2401.10424v1 [cond-mat.mes-hall])**

Aaron Coe (1), Zhi-Huai Zhu (1), Yang He (1), Dae-Jeong Kim (2), Zachary Fisk (2), Jason Hoffman (1), Jennifer Hoffman (1 and 3)

**Treatment and Aging Studies of GaAs(111)B Substrates for van der Waals Chalcogenide Film Growth. (arXiv:2401.10425v1 [cond-mat.mtrl-sci])**

Mingyu Yu, Jiayang Wang, Sahani A. Iddawela, Molly McDonough, Jessica L. Thompson, Susan B Sinnott, Danielle Reifsnyder Hickey, Stephanie Law

**Spontaneous localization at a potential saddle point from edge state reconstruction in a quantum Hall point contact. (arXiv:2401.10433v1 [cond-mat.mes-hall])**

Liam A. Cohen, Noah L. Samuelson, Taige Wang, Kai Klocke, Cian C. Reeves, Takashi Taniguchi, Kenji Watanabe, Sagar Vijay, Michael P. Zaletel, Andrea F. Young

**Fractal Quantum Transport in MoS2 Superlattices. (arXiv:2401.10436v1 [cond-mat.mes-hall])**

Aitor Garcia-Ruiz, Ming-Hao Liu

**Observation of tunable topological polaritons in a cavity waveguide. (arXiv:2401.10450v1 [physics.optics])**

Dong Zhao, Ziyao Wang, Linyun Yang, Yuxin Zhong, Xiang Xi, Zhenxiao Zhu, Maohua Gong, Qingan Tu, Yan Meng, Bei Yan, Ce Shang, Zhen Gao

**Raman scattering signatures of spinons and triplons in frustrated antiferromagnets. (arXiv:2401.10452v1 [cond-mat.str-el])**

O. R. Bellwood, H. L. Nourse, B. J. Powell

**Two-dimensional quantum droplets in binary quadrupolar condensates. (arXiv:2401.10481v1 [cond-mat.quant-gas])**

Aowei Yang, Jiahao Zhou, Xiaoqing Liang, Guilong Li, Bin Liu, Huan-Bo Luo, Boris A Malomed, Yongyao Li

**Photonic Supercoupling in Silicon Topological Waveguides. (arXiv:2401.10508v1 [physics.optics])**

Ridong Jia, Yi Ji Tan, Nikhil Navaratna, Abhishek Kumar, Ranjan Singh

**Comment on "Machine Learning the Operator Content of the Critical Self-Dual Ising-Higgs Gauge Model'', arXiv:2311.17994v1. (arXiv:2401.10563v1 [cond-mat.stat-mech])**

Claudio Bonati, Andrea Pelissetto, Ettore Vicari

**Multipole and fracton topological order via gauging foliated SPT phases. (arXiv:2401.10677v1 [cond-mat.str-el])**

Hiromi Ebisu, Masazumi Honda, Taiichi Nakanishi

**Resurgence of superconductivity and the role of $d_{xy}$ hole band in FeSe$_{1-x}$Te$_x$. (arXiv:2401.10769v1 [cond-mat.supr-con])**

Archie B. Morfoot, Timur K. Kim, Matthew D. Watson, Amir A. Haghighirad, Shiv J. Singh, Nick Bultinck, Amalia I. Coldea

**Inverse Primitive Path Analysis. (arXiv:2401.10813v1 [cond-mat.soft])**

Carsten Svaneborg

**Helical Luttinger liquid on a space-time lattice. (arXiv:2401.10828v1 [cond-mat.str-el])**

V. A. Zakharov, J. Tworzydlo, C. W. J. Beenakker, M. J. Pacholski

**Spectral signatures of non-trivial topology in a superconducting circuit. (arXiv:2401.10876v1 [cond-mat.mes-hall])**

L. Peyruchat (1 and 2), R. H. Rodriguez (1 and 2), J.-L. Smirr (2), R. Leone (3), Ç. Ö. Girit (1 and 2) ((1) Quantronics Group, Université Paris Saclay, CEA, CNRS, SPEC, (2) JEIP, USR 3573 CNRS, Collège de France, PSL University, (3) Laboratoire de Physique et Chimie Théoriques, Université de Lorraine, CNRS)

**Non-Analytic Magnetic Response and Intrinsic Ferromagnetic Clusters in a Dirac Spin Liquid Candidate. (arXiv:2401.10888v1 [cond-mat.str-el])**

B.S. Shivaram, J. Prestigiacomo, Aini Xu, Zhenyuan Zeng, Trevor D. Ford, Itamar Kimchi, Shiliang Li, Patrick A. Lee

**Detecting charge transfer at defects in 2D materials with electron ptychography. (arXiv:2301.04469v4 [cond-mat.mtrl-sci] UPDATED)**

Christoph Hofer, Jacob Madsen, Toma Susi, Timothy J. Pennycook

**Topological Unwinding in an Exciton-Polariton Condensate Array. (arXiv:2307.06550v2 [cond-mat.quant-gas] UPDATED)**

Guitao Lyu, Yuki Minami, Na Young Kim, Tim Byrnes, Gentaro Watanabe

**Topological constraints on the dynamics of vortex formation in a two-dimensional quantum fluid. (arXiv:2308.02305v2 [physics.optics] UPDATED)**

Thibault Congy, Pierre Azam, Robin Kaiser, Nicolas Pavloff

**Infrared resonance Raman of bilayer graphene: signatures of massive fermions and band structure on the 2D peak. (arXiv:2310.04071v2 [cond-mat.mes-hall] UPDATED)**

Lorenzo Graziotto, Francesco Macheda, Tommaso Venanzi, Guglielmo Marchese, Simone Sotgiu, Taoufiq Ouaj, Elena Stellino, Claudia Fasolato, Paolo Postorino, Marvin Metzelaars, Paul Kögerler, Bernd Beschoten, Matteo Calandra, Michele Ortolani, Christoph Stampfer, Francesco Mauri, Leonetta Baldassarre

**Foliated BF theories and Multipole symmetries. (arXiv:2310.06701v2 [cond-mat.str-el] UPDATED)**

Hiromi Ebisu, Masazumi Honda, Taiichi Nakanishi

**Theory of infrared double-resonance Raman spectrum in graphene: the role of the zone-boundary electron-phonon enhancement. (arXiv:2310.09188v2 [cond-mat.mes-hall] UPDATED)**

Lorenzo Graziotto, Francesco Macheda, Thibault Sohier, Matteo Calandra, Francesco Mauri

**Anomalous Hall effect with plateaus observed in a magnetic Weyl semimetal NdAlGe at low temperatures. (arXiv:2312.00222v2 [cond-mat.str-el] UPDATED)**

Naoki Kikugawa, Shinya Uji, Taichi Terashima

**Symmetry-Driven Valleytronics in Single-Layer Tin Chalcogenides. (arXiv:2401.08339v2 [cond-mat.mtrl-sci] UPDATED)**

Vo Khuong Dien, Pham Thi Bich Thao, Nguyen Thi Han, Nguyen Thanh Tien