activity
20222024
most citedBraiding topology of symmetry-protected degeneracy points in non-Hermitian systems

8 citations · 14 across the 5 of their papers we have counts for

collaborators

5 papers

physics.optics2024★ 1 cited

Exceptional features in nonlinear Hermitian systems

Liang Fang, Kai Bai, Cheng Guo +3

Non-Hermitian systems and their topological singularities, such as exceptional points (EPs), lines, and surfaces, have recently attracted intense interest. The investigation of the…

quant-ph2024

Arbitrarily configurable nonlinear topological modes

Kai Bai, Jia-Zheng Li, Tian-Rui Liu +3

Topological modes (TMs) are typically localized at boundaries, interfaces and dislocations, and exponentially decay into the bulk of a large enough lattice. Recently, the non-Hermi…

cond-mat.mes-hall2023★ 8 cited

Braiding topology of symmetry-protected degeneracy points in non-Hermitian systems

Jia-Zheng Li, Kai Bai, Cheng Guo +4

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…

cond-mat.mes-hall2023★ 5 cited

Spin-dependent gain and loss in photonic quantum spin Hall systems

Tian-Rui Liu, Kai Bai, Jia-Zheng Li +3

Topological phases are greatly enriched by including non-Hermiticity. While most works focus on the topology of the eigenvalues and eigenstates, how topologically nontrivial non-He…

cond-mat.mtrl-sci2022

Physically informed machine-learning algorithms for the identification of two-dimensional atomic crystals

Laura Zichi, Tianci Liu, Elizabeth Drueke +2

First isolated in 2004, graphene monolayers display unique properties and promising technological potential in next generation electronics, optoelectronics, and energy storage. The…