Dynamical quantum phase transitions (DQPTs) are a powerful concept of probing far-from-equilibrium criticality in quantum many-body systems. With the strong ongoing experimental drive to quantum simulate lattice gauge theories, it becomes important to investigate DQPTs in these models in order to better understand their far-from-equilibrium properties. In this work, we use infinite matrix product state techniques to study DQPTs in spin -S U (1) quantum link models. Although we are able to reproduce literature results directly connecting DQPTs to a sign change in the dynamical order parameter in the case of S = 1/2 for quenches starting in a vacuum initial state, we find that for different quench protocols or different values of the link spin length S > 1/2 this direct connection is no longer present. In particular, we find that there is an abundance of different types of DQPTs not directly associated with any sign change of the order parameter. Our findings indicate that DQPTs are fundamentally different between the Wilson-Kogut-Susskind limit and its representation through the quantum link formalism.

Dynamical quantum phase transitions in spin- S U(1) quantum link models / Van Damme, Maarten; Zache, Torsten V.; Banerjee, Debasish; Hauke, Philipp; Halimeh, Jad C.. - In: PHYSICAL REVIEW. B. - ISSN 2469-9969. - 106:24(2022), p. 245110. [10.1103/PhysRevB.106.245110]

Dynamical quantum phase transitions in spin- S U(1) quantum link models

Hauke, Philipp
Penultimo
;
2022-01-01

Abstract

Dynamical quantum phase transitions (DQPTs) are a powerful concept of probing far-from-equilibrium criticality in quantum many-body systems. With the strong ongoing experimental drive to quantum simulate lattice gauge theories, it becomes important to investigate DQPTs in these models in order to better understand their far-from-equilibrium properties. In this work, we use infinite matrix product state techniques to study DQPTs in spin -S U (1) quantum link models. Although we are able to reproduce literature results directly connecting DQPTs to a sign change in the dynamical order parameter in the case of S = 1/2 for quenches starting in a vacuum initial state, we find that for different quench protocols or different values of the link spin length S > 1/2 this direct connection is no longer present. In particular, we find that there is an abundance of different types of DQPTs not directly associated with any sign change of the order parameter. Our findings indicate that DQPTs are fundamentally different between the Wilson-Kogut-Susskind limit and its representation through the quantum link formalism.
2022
24
Van Damme, Maarten; Zache, Torsten V.; Banerjee, Debasish; Hauke, Philipp; Halimeh, Jad C.
Dynamical quantum phase transitions in spin- S U(1) quantum link models / Van Damme, Maarten; Zache, Torsten V.; Banerjee, Debasish; Hauke, Philipp; Halimeh, Jad C.. - In: PHYSICAL REVIEW. B. - ISSN 2469-9969. - 106:24(2022), p. 245110. [10.1103/PhysRevB.106.245110]
File in questo prodotto:
File Dimensione Formato  
PhysRevB.106.245110.pdf

Solo gestori archivio

Tipologia: Versione editoriale (Publisher’s layout)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 3.77 MB
Formato Adobe PDF
3.77 MB Adobe PDF   Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/403720
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 10
  • ???jsp.display-item.citation.isi??? 10
social impact