Defect States Emerging from a Non-Hermitian Flatband of Photonic Zero Modes

We show the existence of a flatband consisting of photonic zero modes in a gain and loss modulated lattice system as a result of the underlying non-Hermitian particle-hole symmetry. This general finding explains the previous observation in parity-time symmetric systems where non-Hermitian particle-h...

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Bibliographic Details
Published in:	Physical review letters Vol. 120; no. 9; p. 093901
Main Authors:	Qi, Bingkun, Zhang, Lingxuan, Ge, Li
Format:	Journal Article
Language:	English
Published:	United States American Physical Society 02.03.2018
Subjects:	Defects Lattice vibration Photonics Symmetry Unit cell
ISSN:	0031-9007, 1079-7114, 1079-7114
Online Access:	Get full text
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