2.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of Illinois Urbana-ChampaignUS277 papers
- Princeton UniversityUS19 papers
- University of California, Santa BarbaraUS19 papers
- Donostia International Physics CenterES18 papers
- Massachusetts Institute of TechnologyUS15 papers
- Stanford UniversityUS15 papers
- IkerbasqueES14 papers
- Kavli Institute for Theoretical PhysicsUS14 papers
- University of ChicagoUS12 papers
- Chinese Academy of SciencesCN9 papers
- Institute of PhysicsPL8 papers
- Max Planck Institute for Chemical Physics of SolidsDE8 papers
61 papers · 1 filter
Scattering theory of delicate topological insulators
Penghao Zhu, Jiho Noh, Yingkai Liu +1
We study the scattering theory of delicate topological insulators (TIs), which are novel topological phases beyond the paradigm of the tenfold way, topological quantum chemistry, a…
Spin Hopf Insulator: Helical Hinge States and Returning Thouless Pump
Penghao Zhu, A. Alexandradinata, Taylor L. Hughes
We introduce a time-reversal-symmetric analog of the Hopf insulator that we call a spin Hopf insulator. The spin Hopf insulator harbors nontrivial Kane-Mele invariants on it…
Higher rank chirality and non-Hermitian skin effect in a topolectrical circuit
Penghao Zhu, Xiao-Qi Sun, Taylor L. Hughes +1
While chirality imbalances are forbidden in conventional lattice systems, non-Hermiticity can effectively avoid the chiral-doubling theorem to facilitate 1D chiral dynamics. Indeed…
Spin-Resolved Topology and Partial Axion Angles in Three-Dimensional Insulators
Kuan-Sen Lin, Giandomenico Palumbo, Zhaopeng Guo +8
Symmetry-protected topological crystalline insulators (TCIs) have primarily been characterized by their gapless boundary states. However, in time-reversal- (-) invaria…
Spin-momentum locking from topological quantum chemistry: applications to multifold fermions
Mao Lin, Iñigo Robredo, Niels B. M. Schröter +3
In spin-orbit coupled crystals, symmetries can protect multifold degeneracies with large Chern numbers and Brillouin zone spanning topological surface states. In this work, we expl…
Resolving Hall and dissipative viscosity ambiguities via boundary effects
Pranav Rao, Barry Bradlyn
We examine the physical implications of the viscous redundancy of two-dimensional anisotropic fluids, where different components of the viscosity tensor lead to identical effects i…
Lecture Notes on Berry Phases and Topology
Barry Bradlyn, Mikel Iraola
In these notes, we review the role of Berry phases and topology in noninteracting electron systems. Topics including the adiabatic theorem, parallel transport, and Wannier function…
An accurate tight binding model for twisted bilayer graphene describes topological flat bands without geometric relaxation
Shivesh Pathak, Tawfiqur Rakib, Run Hou +4
A major hurdle in understanding the phase diagram of twisted bilayer graphene (TBLG) are the roles of lattice relaxation and electronic structure on isolated band flattening near m…
Large extrinsic phonon thermal Hall effect from resonant scattering
Xiao-Qi Sun, Jing-Yuan Chen, Steven A. Kivelson
Recent experimental observations of unexpectedly large thermal Hall conductivities, , in insulating materials, including the parent compounds of the high temperature supercond…
Topology invisible to eigenvalues in obstructed atomic insulators
Jennifer Cano, L. Elcoro, M. I. Aroyo +2
We consider the extent to which symmetry eigenvalues reveal the topological character of bands. Specifically, we compare distinct atomic limit phases (band representations) that sh…
Cubic 3D Chern photonic insulators with orientable large Chern vectors
Chiara Devescovi, Mikel García-Díez, Iñigo Robredo +5
Time Reversal Symmetry (TRS) broken topological phases provide gapless surface states protected by topology, regardless of additional internal symmetries, spin or valley degrees of…
Bound states at partial dislocation defects in multipole higher-order topological insulators
Sasha S. Yamada, Tianhe Li, Mao Lin +3
The bulk-boundary correspondence, which links a bulk topological property of a material to the existence of robust boundary states, is a hallmark of topological insulators. However…
Torsion, energy magnetization and thermal Hall effect
Ze-Min Huang, Bo Han, Xiao-Qi Sun
We study the effective action of hydrostatic response to torsion in the absence of spin connections in gapped -dimensional topological phases. In previous studies…
Geometric Response and Disclination-Induced Skin Effects in Non-Hermitian Systems
Xiao-Qi Sun, Penghao Zhu, Taylor L. Hughes
We study the geometric response of three-dimensional non-Hermitian crystalline systems with nontrivial point-gap topology. For systems with fourfold rotation symmetry, we show that…
Cubic Hall viscosity in three-dimensional topological semimetals
Iñigo Robredo, Pranav Rao, Fernando de Juan +5
The nondissipative (Hall) viscosity is known to play an interesting role in two-dimensional (2D) topological states of matter, in the hydrodynamic regime of correlated materials, a…
Simulating Higher-Order Topological Insulators in Density Wave Insulators
Kuan-Sen Lin, Barry Bradlyn
Since the discovery of the Harper-Hofstadter model, it has been known that condensed matter systems with periodic modulations can be promoted to non-trivial topological states with…
Magnetic Topological Quantum Chemistry
Luis Elcoro, Benjamin J. Wieder, Zhida Song +3
For over 100 years, the group-theoretic characterization of crystalline solids has provided the foundational language for diverse problems in physics and chemistry. However, the gr…
Quantized surface magnetism and higher-order topology: Application to the Hopf insulator
Penghao Zhu, Taylor L. Hughes, A. Alexandradinata
We identify topological aspects of the subextensive magnetic moment contributed by the surfaces of a three-dimensional crystallite -- assumed to be insulating in the bulk as well a…
On the robustness of topological corner modes in photonic crystals
Matthew Proctor, Paloma Arroyo Huidobro, Barry Bradlyn +4
We analyze the robustness of corner modes in topological photonic crystals, taking a -symmetric breathing honeycomb photonic crystal as an example. First, we employ topologica…
Higher-order Weyl Semimetals
Sayed Ali Akbar Ghorashi, Tianhe Li, Taylor L. Hughes
We investigate higher-order Weyl semimetals (HOWSMs) having bulk Weyl nodes attached to both surface and hinge Fermi arcs. We identify a new type of Weyl node, that we dub a …
Band Representations and Topological Quantum Chemistry
Jennifer Cano, Barry Bradlyn
In this article, we provide a pedagogical review of the theory of topological quantum chemistry and topological crystalline insulators. We begin with an overview of the properties…
Axionic Band Topology in Inversion-Symmetric Weyl-Charge-Density Waves
Benjamin J. Wieder, Kuan-Sen Lin, Barry Bradlyn
In recent theoretical and experimental investigations, researchers have linked the low-energy field theory of a Weyl semimetal gapped with a charge-density wave (CDW) to high-energ…
A fractional corner anomaly reveals higher-order topology
Christopher W. Peterson, Tianhe Li, Wladimir A. Benalcazar +2
Spectral measurements of boundary localized in-gap modes are commonly used to identify topological insulators via the bulk-boundary correspondence. This can be extended to high-ord…
Tutorial: Computing topological invariants in two-dimensional photonic crystals
María Blanco de Paz, Chiara Devescovi, Geza Giedke +5
The field of topological photonics emerged as one of the most promising areas for applications in transformative technologies: possible applications are in topological lasers or qu…