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quant-ph2023★ 5 cited
Density dependent gauge field inducing emergent SSH physics, solitons and condensates in a discrete nonlinear Schrödinger equation
William N. Faugno, Mario Salerno, Tomoki Ozawa
We investigate a discrete non-linear Schrödinger equation with dynamical, density-difference-dependent, gauge fields. We find a ground-state transition from a plane wave condensate…
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…