BROWSE

Related Scientist

KIM, Kyoung-min's photo.

KIM, Kyoung-min
복잡계 이론물리 연구단
more info

ITEM VIEW & DOWNLOAD

Disorder-driven phase transition in the second-order non-Hermitian skin effect

Cited 0 time in webofscience Cited 0 time in scopus
3 Viewed 0 Downloaded
Title
Disorder-driven phase transition in the second-order non-Hermitian skin effect
Author(s)
Kyoung-Min Kim; Moon Jip Park
Publication Date
2021-09-15
Journal
Physical Review B, v.104, no.12
Publisher
American Physical Society
Abstract
© 2021 American Physical Society.The non-Hermitian skin effect exhibits a collapse of extended bulk modes into an extensive number of localized boundary states in the open boundary condition. Here, we demonstrate a disorder-driven phase transition of a trivial non-Hermitian system to the higher-order non-Hermitian skin effect phase. In contrast to clean systems, the disorder-induced boundary modes form an arc in the complex energy plane, which is a manifestation of the disorder-driven energy-dependent phase transition. At the phase transition, localized corner modes and bulk modes characterized by trivial Hamiltonians coexist within a single band, while they remain separated in the complex energy plane. This behavior is analogous to the mobility edge phenomena in disordered Hermitian systems. Using effective medium theory and numerical diagonalizations, we provide a systematic characterization of the disorder-driven phase transition.
URI
https://pr.ibs.re.kr/handle/8788114/10355
DOI
10.1103/PhysRevB.104.L121101
ISSN
2469-9950
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
There are no files associated with this item.

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse