A review on non-Hermitian skin effect

The past decades have witnessed the flourishing of non-Hermitian physics in non-conservative systems, leading to unprecedented phenomena of unidirectional invisibility, enhanced sensitivity and more recently the novel topological features such as bulk Fermi arcs. Among them, growing efforts have bee...

Celý popis

Uložené v:
Podrobná bibliografia
Vydané v:Advances in physics: X Ročník 7; číslo 1
Hlavní autori: Zhang, Xiujuan, Zhang, Tian, Lu, Ming-Hui, Chen, Yan-Feng
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Abingdon Taylor & Francis 31.12.2022
Taylor & Francis Ltd
Taylor & Francis Group
Predmet:
Crystal defects
Eigenvalues
Laboratories
Materials science
Non-Hermitian physics
Non-Hermitian skin effect
Non-Hermitian topological phases of matter
Physics
Sensitivity enhancement
Skin effect
Symmetry
Topology
Visibility
ISSN:2374-6149, 2374-6149
On-line prístup:Získať plný text
Tagy: Pridať tag
Žiadne tagy, Buďte prvý, kto otaguje tento záznam!
Popis
Shrnutí:The past decades have witnessed the flourishing of non-Hermitian physics in non-conservative systems, leading to unprecedented phenomena of unidirectional invisibility, enhanced sensitivity and more recently the novel topological features such as bulk Fermi arcs. Among them, growing efforts have been invested to an intriguing phenomenon, known as the non-Hermitian skin effect (NHSE). Here, we review the recent progress in this emerging field. By starting from the one-dimensional (1D) case, the fundamental concepts of NHSE, its minimal model, the physical meanings and consequences are elaborated in details. In particular, we discuss the NHSE enriched by lattice symmetries, which gives rise to unique non-Hermitian topological properties with revised bulk-boundary correspondence (BBC) and new definitions of topological invariants. Then we extend the discussions to two and higher dimensions, where dimensional surprises enable even more versatile NH.SE phenomena. Extensions of NHSE assisted with extra degrees of freedom such as long-range coupling, pseudospins, magnetism, non-linearity and crystal defects are also reviewed. This is followed by the contemporary experimental progress for NHSE. Finally, we provide the outlooks to possible future directions and developments.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:2374-6149
2374-6149
DOI:10.1080/23746149.2022.2109431