Non-Hermitian topology and exceptional-point geometries

K Ding, C Fang, G Ma - Nature Reviews Physics, 2022 - nature.com
Non-Hermitian theory is a theoretical framework used to describe open systems. It offers a
powerful tool in the characterization of both the intrinsic degrees of freedom of a system and …

Topological non-Hermitian skin effect

R Lin, T Tai, L Li, CH Lee - Frontiers of Physics, 2023 - Springer
This article reviews recent developments in the non-Hermitian skin effect (NHSE),
particularly on its rich interplay with topology. The review starts off with a pedagogical …

A review on non-Hermitian skin effect

X Zhang, T Zhang, MH Lu, YF Chen - Advances in Physics: X, 2022 - Taylor & Francis
The past decades have witnessed the flourishing of non-Hermitian physics in non-
conservative systems, leading to unprecedented phenomena of unidirectional invisibility …

Exceptional topology of non-Hermitian systems

EJ Bergholtz, JC Budich, FK Kunst - Reviews of Modern Physics, 2021 - APS
The current understanding of the role of topology in non-Hermitian (NH) systems and its far-
reaching physical consequences observable in a range of dissipative settings are reviewed …

Non-reciprocal phase transitions

M Fruchart, R Hanai, PB Littlewood, V Vitelli - Nature, 2021 - nature.com
Out of equilibrium, a lack of reciprocity is the rule rather than the exception. Non-reciprocity
occurs, for instance, in active matter,,,,–, non-equilibrium systems,–, networks of neurons …

Critical non-Hermitian skin effect

L Li, CH Lee, S Mu, J Gong - Nature communications, 2020 - nature.com
Critical systems represent physical boundaries between different phases of matter and have
been intensely studied for their universality and rich physics. Yet, with the rise of non …

Observation of non-Bloch parity-time symmetry and exceptional points

L Xiao, T Deng, K Wang, Z Wang, W Yi, P Xue - Physical Review Letters, 2021 - APS
Parity-time (PT)-symmetric Hamiltonians have widespread significance in non-Hermitian
physics. APT-symmetric Hamiltonian can exhibit distinct phases with either real or complex …

Non-Hermitian skin modes induced by on-site dissipations and chiral tunneling effect

Y Yi, Z Yang - Physical Review Letters, 2020 - APS
In this Letter, we study the conditions under which on-site dissipations can induce non-
Hermitian skin modes in non-Hermitian systems. When the original Hermitian Hamiltonian …

Exact solution of non-Hermitian systems with generalized boundary conditions: size-dependent boundary effect and fragility of the skin effect

CX Guo, CH Liu, XM Zhao, Y Liu, S Chen - Physical Review Letters, 2021 - APS
Systems with non-Hermitian skin effects are very sensitive to the imposed boundary
conditions and lattice size, and thus an important question is whether non-Hermitian skin …

Amoeba formulation of non-bloch band theory in arbitrary dimensions

HY Wang, F Song, Z Wang - Physical Review X, 2024 - APS
The non-Hermitian skin effect dramatically reshapes the energy bands of non-Hermitian
systems, meaning that the usual Bloch band theory is fundamentally inadequate as their …