Emergent localized states at the interface of a twofold PT-symmetric lattice

We consider the role of nontriviality resulting from a non-Hermitian Hamiltonian without band topology that conserves twofold PT symmetry assembled by interconnections between a PT-symmetric lattice and its time-reversal partner. Twofold PT symmetry in the lattice produces additional surface excepti...

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Bibliographic Details
Main Authors: Jung-Wan Ryu, Nojoon Myoung, Ara Go, Sungjong Woo, Sang-Jun Choi, Hee Chul Park
Format: Article
Language:English
Published: American Physical Society 2020-07-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.2.033149