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- W4367673691 abstract "The synergy between non-Hermitian concepts and topological ideas have led to very fruitful activity in the recent years. Their interplay has resulted in a wide variety of new non-Hermitian topological phenomena being discovered. In this review, we present the key principles underpinning the topological features of non-Hermitian phases. Using paradigmatic models -- Hatano-Helson, non-Hermitian Su-Schrieffer-Heeger and non-Hermitian Chern insulator -- we illustrate the central features of non-Hermitian topological systems, including exceptional points, complex energy gaps and non-Hermitian symmetry classification. We discuss the non-Hermitian skin effect and the notion of the generalized Brillouin zone, which allows restoring the bulk-boundary correspondence. Using concrete examples, we examine the role of disorder, present the linear response framework, and analyze the Hall transport properties of non-Hermitian topological systems. We also survey the rapidly growing experimental advances in this field. Finally, we end by highlighting possible directions which, in our view, may be promising for explorations in the near future." @default.
- W4367673691 created "2023-05-03" @default.
- W4367673691 creator A5017134288 @default.
- W4367673691 creator A5050625378 @default.
- W4367673691 creator A5063275508 @default.
- W4367673691 creator A5063311781 @default.
- W4367673691 date "2023-05-18" @default.
- W4367673691 modified "2023-10-18" @default.
- W4367673691 title "Non-Hermitian topological phases: principles and prospects" @default.
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