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 …

Non-hermitian strongly interacting Dirac fermions

XJ Yu, Z Pan, L Xu, ZX Li - Physical Review Letters, 2024 - APS
Exotic quantum phases and phase transition in the strongly interacting Dirac systems have
attracted tremendous interests. On the other hand, non-Hermitian physics, usually …

Quantum phase transition and critical behavior between the gapless topological phases

HL Zhang, HZ Li, S Yang, XJ Yu - Physical Review A, 2024 - APS
The phase transition between gapped topological phases represents a class of
unconventional criticality beyond the Landau paradigm. However, recent research has …

Fidelity susceptibility at the Lifshitz transition between the noninteracting topologically distinct quantum critical points

XJ Yu, WL Li - Physical Review B, 2024 - APS
By constructing an exactly solvable spin model, we investigate the critical behaviors of
transverse-field Ising chains interpolated with cluster interactions, which exhibit various …

Identifying non-Hermitian critical points with the quantum metric

JF Ren, J Li, HT Ding, DW Zhang - Physical Review A, 2024 - APS
The geometric properties of quantum states are fully encoded by the quantum geometric
tensor. The real and imaginary parts of the quantum geometric tensor are the quantum …

Non-Hermitian skin effect in a one-dimensional interacting Bose gas

L Mao, Y Hao, L Pan - Physical Review A, 2023 - APS
Non-Hermitian skin effect (NHSE) is a unique feature studied extensively in noninteracting
non-Hermitian systems. In this paper, we extend the NHSE originally discovered in …

Non-Hermitian squeezed polarons

F Qin, R Shen, CH Lee - Physical Review A, 2023 - APS
Recent experimental breakthroughs in non-Hermitian ultracold atomic lattices have dangled
tantalizing prospects in realizing exotic, hitherto unreported, many-body non-Hermitian …

Liouvillian skin effect in a one-dimensional open many-body quantum system with generalized boundary conditions

L Mao, X Yang, MJ Tao, H Hu, L Pan - Physical Review B, 2024 - APS
The non-Hermitian skin effect, in which eigenstates of non-Hermitian Hamiltonians are
localized at one boundary in the open boundary condition, has attracted great interest …

Fidelity susceptibility as a diagnostic of the commensurate-incommensurate transition: A revisit of the programmable Rydberg chain

XJ Yu, S Yang, JB Xu, L Xu - Physical Review B, 2022 - APS
In recent years, programmable Rydberg-atom arrays have been widely used to simulate
new quantum phases and phase transitions, generating great interest among theorists and …

[HTML][HTML] General properties of fidelity in non-Hermitian quantum systems with PT symmetry

YT Tu, I Jang, PY Chang, YC Tzeng - Quantum, 2023 - quantum-journal.org
The fidelity susceptibility is a tool for studying quantum phase transitions in the Hermitian
condensed matter systems. Recently, it has been generalized with the biorthogonal basis for …