Persistence of topological phases in non-Hermitian quantum walks

Abstract Discrete-time quantum walks are known to exhibit exotic topological states and phases. Physical realization of quantum walks in a lossy environment may destroy these phases. We investigate the behaviour of topological states in quantum walks in the presence of a lossy environment. The envir...

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Bibliographic Details
Main Authors: Vikash Mittal, Aswathy Raj, Sanjib Dey, Sandeep K. Goyal
Format: Article
Language:English
Published: Nature Publishing Group 2021-05-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-021-89441-8