Winding around non-Hermitian singularities

A general description of observable effects induced by non-Hermitian singularities is complex. Here, Zhong et al. develop such a formalism, showing that loops around the same exceptional point starting from the same point in the same direction do not need to have the same outcome.

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Bibliographic Details
Main Authors: Qi Zhong, Mercedeh Khajavikhan, Demetrios N. Christodoulides, Ramy El-Ganainy
Format: article
Language:EN
Published: Nature Portfolio 2018
Subjects:
Q
Online Access:https://doaj.org/article/3b73cce6beee4a85a5f83cc7c12fc2f7
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Summary:A general description of observable effects induced by non-Hermitian singularities is complex. Here, Zhong et al. develop such a formalism, showing that loops around the same exceptional point starting from the same point in the same direction do not need to have the same outcome.