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- W3119537394 abstract "We investigate the topological properties, energy spectrum, and persistent currents of a non-Hermitian ring with anti-Hermitian hopping terms. It is demonstrated that the anti-Hermitian hopping can effectively induce a synthetic gauge field. As the magnetic flux of the synthetic gauge field threads through the ring, the non-Hermitian system exhibits an Aharonov-Bohm effect. For the case of a non-Hermitian ring in the topological phase, the system, having an energy spectrum structure with a real gap, supports an imaginary persistent current. For the trivial case, a non-Hermitian system with an imaginary gap supports a real persistent current. Furthermore, we also investigate the transport property of a non-Hermitian Aharonov-Bohm ring connected by two semi-infinite leads. We find that the transmission coefficient shows the Aharonov-Bohm quantum oscillation as a function of the synthetic gauge field." @default.
- W3119537394 created "2021-01-18" @default.
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- W3119537394 date "2021-01-15" @default.
- W3119537394 modified "2023-10-17" @default.
- W3119537394 title "Non-Hermitian Aharonov-Bohm effect in the quantum ring" @default.
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- W3119537394 doi "https://doi.org/10.1103/physrevb.103.035415" @default.
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