OPT OpenIR  > 瞬态光学技术国家重点实验室
Defect States Emerging from a Non-Hermitian Flatband of Photonic Zero Modes
Qi, Bingkun1,2; Zhang, Lingxuan1,3; Ge, Li1,2
Department瞬态光学技术国家重点实验室
2018-02-27
Source PublicationPHYSICAL REVIEW LETTERS
ISSN0031-9007
Volume120Issue:9
Contribution Rank3
Abstract

We show the existence of a flatband consisting of photonic zero modes in a gain and loss modulated lattice system as a result of the underlying non-Hermitian particle-hole symmetry. This general finding explains the previous observation in parity-time symmetric systems where non-Hermitian particle-hole symmetry is hidden. We further discuss the defect states in these systems, whose emergence can be viewed as an unconventional alignment of a pseudospin under the influence of a complex-valued pseudomagnetic field. These defect states also behave as a chain with two types of links, one rigid in a unit cell and one soft between unit cells, as the defect states become increasingly localized with the gain and loss strength.

 

Subject AreaPhysics, Multidisciplinary
DOI10.1103/PhysRevLett.120.093901
Indexed BySCI ; EI
Language英语
WOS IDWOS:000426173800004
EI Accession Number20181004882477
Citation statistics
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/30753
Collection瞬态光学技术国家重点实验室
Corresponding AuthorGe, Li
Affiliation1.CUNY Coll Staten Isl, Dept Engn Sci & Phys, Staten Isl, NY 10314 USA;
2.CUNY, Grad Ctr, New York, NY 10016 USA;
3.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Qi, Bingkun,Zhang, Lingxuan,Ge, Li. Defect States Emerging from a Non-Hermitian Flatband of Photonic Zero Modes[J]. PHYSICAL REVIEW LETTERS,2018,120(9).
APA Qi, Bingkun,Zhang, Lingxuan,&Ge, Li.(2018).Defect States Emerging from a Non-Hermitian Flatband of Photonic Zero Modes.PHYSICAL REVIEW LETTERS,120(9).
MLA Qi, Bingkun,et al."Defect States Emerging from a Non-Hermitian Flatband of Photonic Zero Modes".PHYSICAL REVIEW LETTERS 120.9(2018).
Files in This Item:
File Name/Size DocType Version Access License
Defect States Emergi(445KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Qi, Bingkun]'s Articles
[Zhang, Lingxuan]'s Articles
[Ge, Li]'s Articles
Baidu academic
Similar articles in Baidu academic
[Qi, Bingkun]'s Articles
[Zhang, Lingxuan]'s Articles
[Ge, Li]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Qi, Bingkun]'s Articles
[Zhang, Lingxuan]'s Articles
[Ge, Li]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Defect States Emerging from a Non-Hermitian Flatband of Photonic Zero Modes.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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