Fixed Points and Dynamic Topological Phenomena in a Parity-Time-Symmetric Quantum Quench

Summary: We identify dynamic topological phenomena such as dynamic Chern numbers and dynamic quantum phase transitions in quantum quenches of the non-Hermitian Su-Schrieffer-Heeger Hamiltonian with parity-time (PT) symmetry. Their occurrences in the non-unitary dynamics are intimately connected with...

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Bibliographic Details
Main Authors: Xingze Qiu, Tian-Shu Deng, Ying Hu, Peng Xue, Wei Yi
Format: Article
Language:English
Published: Elsevier 2019-10-01
Series:iScience
Online Access:http://www.sciencedirect.com/science/article/pii/S2589004219303761