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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Vydané v:	Physical review letters Ročník 120; číslo 9; s. 093901
Hlavní autori:	Qi, Bingkun, Zhang, Lingxuan, Ge, Li
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	United States American Physical Society 02.03.2018
Predmet:	Defects Lattice vibration Photonics Symmetry Unit cell
ISSN:	0031-9007, 1079-7114, 1079-7114
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