Tangent fermions: Dirac or Majorana fermions on a lattice without fermion doubling

CWJ Beenakker, A Donís Vela, G Lemut… - Annalen der …, 2023 - Wiley Online Library
Methods to discretize the Hamiltonian of a topological insulator or topological
superconductor, without giving up on the topological protection of the massless excitations …

Quantum geometry of singlet superconductors

D Porlles, W Chen - Physical Review B, 2023 - APS
We elaborate that s-wave and d-wave superconductors described by mean field theories
possess a nontrivial quantum geometry. From the overlap of two quasihole states at slightly …

Topological quadratic-node semimetal in a photonic microring lattice

Z Gao, H Zhao, T Wu, X Feng, Z Zhang, X Qiao… - Nature …, 2023 - nature.com
Graphene, with its two linearly dispersing Dirac points with opposite windings, is the minimal
topological nodal configuration in the hexagonal Brillouin zone. Topological semimetals with …

topological invariants and the half quantized Hall effect

B Fu, SQ Shen - Communications Physics, 2025 - nature.com
The half-quantized Hall phase represents a unique metallic or semi-metallic state of matter
characterized by a fractional quantum Hall conductance, precisely half of an integer ν …

Comprehensive study of all spinful and spinless linear band crossings in the 80 layer groups

W Wang, L Huang, X Wan, F Tang - Physical Review B, 2024 - APS
Two-dimensional (2D) materials have emerged as a fertile ground displaying various
fascinating properties, such as nontrivial band topology and exotic correlated states, which …

Non-Hermitian skin effect enforced by nonsymmorphic symmetries

Y Tanaka, R Takahashi, R Okugawa - Physical Review B, 2024 - APS
Crystal symmetries play an essential role in band structures of non-Hermitian Hamiltonians.
In this paper, we propose a non-Hermitian skin effect (NHSE) enforced by nonsymmorphic …

Classification of time-reversal symmetric topological superconducting phases for conventional pairing symmetries

S Ono, K Shiozaki, H Watanabe - Physical Review B, 2024 - APS
Symmetry properties of Cooper pairs play a pivotal role in studies on topological
superconductivity. Unconventional superconductors, whose pairing symmetries are different …

Nonsymmorphic-symmetry-enforced non-Hermitian skin effects

Y Tanaka, R Takahashi, R OKugawa - arXiv preprint arXiv:2306.08923, 2023 - arxiv.org
Crystal symmetries play an essential role in band structures of non-Hermitian Hamiltonian.
In this letter, we propose a non-Hermitian skin effect (NHSE) enforced by nonsymmorphic …

Investigating how to simulate lattice gauge theories on a quantum computer

E Mendicelli - arXiv preprint arXiv:2308.15421, 2023 - arxiv.org
Quantum computers have the potential to expand the utility of lattice gauge theory to
investigate non-perturbative particle physics phenomena that cannot be accessed using a …

Uniform response theory of non-Hermitian systems: Non-Hermitian physics beyond the exceptional point

S Bid, H Schomerus - arXiv preprint arXiv:2412.11932, 2024 - arxiv.org
Non-Hermitian systems display remarkable response effects that reflect a variety of distinct
spectral scenarios, such as exceptional points where the eigensystem becomes defective …