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quant-ph2022★ 53 cited
Interaction-induced non-Hermitian topological phases from a dynamical gauge field
William N Faugno, Tomoki Ozawa
We present a minimal non-Hermitian model where a topologically nontrivial complex energy spectrum is induced by inter-particle interactions. Our model consists of a one-dimensional…
quant-ph2022★ 3 cited
Band structures under non-Hermitian periodic potentials: Connecting nearly-free and bi-orthogonal tight-binding models
Ken Mochizuki, Tomoki Ozawa
We explore band structures of one-dimensional open systems described by periodic non-Hermitian operators, based on continuum models and tight-binding models. We show that imaginary…