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- Publisher Website: 10.1103/PhysRevLett.131.176402
- Scopus: eid_2-s2.0-85175399740
- WOS: WOS:001170539600006
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Article: Making Topologically Trivial Non-Hermitian Systems Nontrivial via Gauge Fields
Title | Making Topologically Trivial Non-Hermitian Systems Nontrivial via Gauge Fields |
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Authors | |
Issue Date | 25-Oct-2023 |
Publisher | American Physical Society |
Citation | Physical Review Letters, 2023, v. 131, n. 17, p. 1-7 How to Cite? |
Abstract | Non-Hermiticity significantly enriches the concepts of symmetry and topology in physics. Particularly, |
Persistent Identifier | http://hdl.handle.net/10722/338997 |
ISSN | 2023 Impact Factor: 8.1 2023 SCImago Journal Rankings: 3.040 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Rui, WB | - |
dc.contributor.author | Zhao, YX | - |
dc.contributor.author | Wang, ZD | - |
dc.date.accessioned | 2024-03-11T10:33:04Z | - |
dc.date.available | 2024-03-11T10:33:04Z | - |
dc.date.issued | 2023-10-25 | - |
dc.identifier.citation | Physical Review Letters, 2023, v. 131, n. 17, p. 1-7 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | http://hdl.handle.net/10722/338997 | - |
dc.description.abstract | <p>Non-Hermiticity significantly enriches the concepts of symmetry and topology in physics. Particularly,<br>non-Hermiticity gives rise to the ramified symmetries, where the non-Hermitian Hamiltonian H is<br>transformed to H†. For time-reversal (T) and sublattice symmetries, there are six ramified symmetry classes<br>leading to novel topological classifications with various non-Hermitian skin effects. As artificial crystals<br>are the main experimental platforms for non-Hermitian physics, there exists the symmetry barrier for<br>realizing topological physics in the six ramified symmetry classes: while artificial crystals are in spinless<br>classes with T2 ¼ 1, nontrivial classifications dominantly appear in spinful classes with T2 ¼ −1. Here, we<br>present a general mechanism to cross the symmetry barrier. With an internal parity symmetry P, the square<br>of the combination ˜T ¼ PT can be modified by appropriate gauge fluxes. Using the general mechanism,<br>we systematically construct spinless models for all non-Hermitian spinful topological phases in one and<br>two dimensions, which are experimentally realizable. Our Letter suggests that gauge structures may<br>significantly enrich non-Hermitian physics at the fundamental level.<br></p> | - |
dc.language | eng | - |
dc.publisher | American Physical Society | - |
dc.relation.ispartof | Physical Review Letters | - |
dc.title | Making Topologically Trivial Non-Hermitian Systems Nontrivial via Gauge Fields | - |
dc.type | Article | - |
dc.identifier.doi | 10.1103/PhysRevLett.131.176402 | - |
dc.identifier.scopus | eid_2-s2.0-85175399740 | - |
dc.identifier.volume | 131 | - |
dc.identifier.issue | 17 | - |
dc.identifier.spage | 1 | - |
dc.identifier.epage | 7 | - |
dc.identifier.eissn | 1079-7114 | - |
dc.identifier.isi | WOS:001170539600006 | - |
dc.identifier.issnl | 0031-9007 | - |