Non-Hermitian Floquet topological phases: Exceptional points, coalescent edge modes, and the skin effect

Periodically driven non-Hermitian systems can exhibit rich topological band structure and non-Hermitian skin effect, without analogs in their static or Hermitian counterparts. In this work we investigate the exceptional band-touching points in the Floquet quasienergy bands, the topological character...

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Veröffentlicht in:	Physical review. B 2020-01, Vol.101 (4), p.1, Article 045415
Hauptverfasser:	Zhang, Xizheng, Gong, Jiangbin
Format:	Artikel
Sprache:	eng
Schlagworte:	Band structure of solids Boundary conditions Coalescing Parameters Polynomials Skin effect Topology Two dimensional analysis
Online-Zugang:	Volltext
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