Dynamical Topological Quantum Phase Transitions in Nonintegrable Models

I. Hagymási, C. Hubig, O. Legeza, U. Schollwöck

Research output: Contribution to journalArticle

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Abstract

We consider sudden quenches across quantum phase transitions in the S=1 XXZ model starting from the Haldane phase. We demonstrate that dynamical phase transitions may occur during these quenches that are identified by nonanalyticities in the rate function for the return probability. In addition, we show that the temporal behavior of the string order parameter is intimately related to the subsequent dynamical phase transitions. We furthermore find that the dynamical quantum phase transitions can be accompanied by enhanced two-site entanglement.

Original languageEnglish
Article number250601
JournalPhysical review letters
Volume122
Issue number25
DOIs
Publication statusPublished - Jun 25 2019

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  • Physics and Astronomy(all)

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Dynamical Topological Quantum Phase Transitions in Nonintegrable Models. / Hagymási, I.; Hubig, C.; Legeza, O.; Schollwöck, U.

In: Physical review letters, Vol. 122, No. 25, 250601, 25.06.2019.

Research output: Contribution to journalArticle

Hagymási, I. ; Hubig, C. ; Legeza, O. ; Schollwöck, U. / Dynamical Topological Quantum Phase Transitions in Nonintegrable Models. In: Physical review letters. 2019 ; Vol. 122, No. 25.
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