Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.13087/2056
Title: Topological states in a non-Hermitian two-dimensional Su-Schrieffer-Heeger model
Authors: Yüce, Cem
Ramezani, Hamidreza
Issue Date: 2019
Publisher: Amer Physical Soc
Abstract: A non-Hermitian topological insulator with a real spectrum is interesting in the theory of non-Hermitian extension of topological systems. We find an experimentally realizable example of a two-dimensional non-Hermitian topological insulator with a real spectrum. We consider the two-dimensional Su-Schrieffer-Heeger (SSH) model with gain and loss. We introduce a non-Hermitian polarization vector to explore topological phase and show that topological edge states in the band gap exist in the system.
URI: https://doi.org/10.1103/PhysRevA.100.032102
https://hdl.handle.net/20.500.13087/2056
ISSN: 2469-9926
2469-9934
Appears in Collections:Scopus İndeksli Yayınlar Koleksiyonu
WoS İndeksli Yayınlar Koleksiyonu

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