Exceptional points in oligomer chains

Open quantum systems governed by non-Hermitian dynamics provide a platform to explore PT symmetric phases. Here, a general theory is derived to describe the location of exceptional points in a 1D oligomer chain of arbitrary length.

Bibliographic Details
Main Authors: Charles Andrew Downing, Vasil Arkadievich Saroka
Format: Article
Language:English
Published: Nature Portfolio 2021-12-01
Series:Communications Physics
Online Access:https://doi.org/10.1038/s42005-021-00757-3