Parity-Time Symmetry Breaking beyond One Dimension: The Role of Degeneracy

We consider the role of degeneracy in parity-time (PT) symmetry breaking for non-Hermitian wave equations beyond one dimension. We show that if the spectrum is degenerate in the absence of T breaking, and T is broken in a generic manner (without preserving other discrete symmetries), then the standa...

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Bibliographic Details
Main Authors: Li Ge, A. Douglas Stone
Format: Article
Language:English
Published: American Physical Society 2014-07-01
Series:Physical Review X
Online Access:http://doi.org/10.1103/PhysRevX.4.031011