Flux-quench induced dynamical quantum phase transitions in an extended XY spin-chain

Dynamical quantum phase transitions (DQPTs) induced by flux-quench in an extended transversed XY spin-chain have been investigated in this paper. We discussed the conditions for the appearance of DQPTs, and the different regions of the flux quench restricted by strength of transverse field were give...

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Bibliographic Details
Published inPhysica A Vol. 653; p. 130110
Main Authors Nie, Wen-Hui, Zhang, Mei-Yu, Wang, Lin-Cheng
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.11.2024
Subjects
Dynamical quantum phase transitions
Flux-quench
Spin-chain
Spin-chain
Flux-quench
Dynamical quantum phase transitions
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Summary:Dynamical quantum phase transitions (DQPTs) induced by flux-quench in an extended transversed XY spin-chain have been investigated in this paper. We discussed the conditions for the appearance of DQPTs, and the different regions of the flux quench restricted by strength of transverse field were given. The Loschmidt echo, rate function, geometric phase, as well as dynamical topological order parameter (DTOP) have been calculated, which consistently verified the emergence of DQPTs.
ISSN:0378-4371
DOI:10.1016/j.physa.2024.130110