The DOI matches its Crossref record; 68 of the 68 references it cites were found in a registry or an index.
Topological Phase Transition in non-Hermitian Quasicrystals
Open accessAbstract
The discovery of topological phases in non-Hermitian open classical and quantum systems challenges our current understanding of topological order. Non-Hermitian systems exhibit unique features with no counterparts in topological Hermitian models, such as failure of the conventional bulk-boundary correspondence and non-Hermitian skin effect. Advances in the understanding of the topological properties of non-Hermitian lattices with translational invariance have been reported in several recent studies; however little is known about non-Hermitian quasicrystals. Here we disclose topological phases in a quasicrystal with parity-time (PT) symmetry, described by a non-Hermitian extension of the Aubry-André-Harper model. It is shown that the metal-insulating phase transition, observed at the PT symmetry breaking point, is of topological nature and can be expressed in terms of a winding number. A photonic realization of a non-Hermitian quasicrystal is also suggested.
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Cites
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Cited by
Classification of Exceptional Points and Non-Hermitian Topological Semimetals
Kawabata, K., Bessho, T., & Sato, M. (2019) · Physical Review Letters · doi:10.1103/physrevlett.123.066405 · Cited by 404
Non-Hermitian second-order skin and topological modes
Fu, Y., Hu, J., & Wan, S. (2021) · Physical Review B · doi:10.1103/physrevb.103.045420 · Cited by 111
Metadata
- Authors
- Longhi, S.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2019-06-11
- Volume
- 122
- Issue
- 23
- Pages
- 237601-237601
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2945565493
- Cited by
- 438
- References
- 68
- FWCI
- 22.45
- Type
- journal article
- Language
- en
- Open access
- green
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