Entanglement entropy in low-energy field theories at a finite chemical potential

We investigate the leading area-law contribution to entanglement entropy in a system described by a general Lagrangian with O(2) symmetry containing first- and second-order time derivatives, namely, breaking the Lorentz invariance. We establish a connection between the Higgs gap present in a symmetr...

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Detalles Bibliográficos
Autores: Morera Navarro, Ivan, Frerot, Iréneé, Polls Martí, Artur, Juliá-Díaz, Bruno
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/179876
Acceso en línea:https://hdl.handle.net/2445/179876
Access Level:acceso abierto
Palabra clave:Gravetat quàntica
Termodinàmica
Quantum gravity
Thermodynamics
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spelling Entanglement entropy in low-energy field theories at a finite chemical potentialMorera Navarro, IvanFrerot, IréneéPolls Martí, ArturJuliá-Díaz, BrunoGravetat quànticaTermodinàmicaQuantum gravityThermodynamicsWe investigate the leading area-law contribution to entanglement entropy in a system described by a general Lagrangian with O(2) symmetry containing first- and second-order time derivatives, namely, breaking the Lorentz invariance. We establish a connection between the Higgs gap present in a symmetry-broken phase and the area-law term for the entanglement entropy in the general nonrelativistic case. Our predictions for the entanglement entropy and correlation length are successfully compared to numerical results in two paradigmatic systems: the Mott insulator to the superfluid transition for ultracold lattice bosons and the ground state of ferrimagnetic systems.American Physical Society2020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/179876Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1103/PhysRevResearch.2.033016Physical Review Research, 2020, vol. 2, num. 3, p. 033016https://doi.org/10.1103/PhysRevResearch.2.033016info:eu-repo/grantAgreement/EC/H2020/833801cc-by (c) Morera Navarro, Ivan et al., 2020https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1798762026-05-27T06:46:51Z
dc.title.none.fl_str_mv Entanglement entropy in low-energy field theories at a finite chemical potential
title Entanglement entropy in low-energy field theories at a finite chemical potential
spellingShingle Entanglement entropy in low-energy field theories at a finite chemical potential
Morera Navarro, Ivan
Gravetat quàntica
Termodinàmica
Quantum gravity
Thermodynamics
title_short Entanglement entropy in low-energy field theories at a finite chemical potential
title_full Entanglement entropy in low-energy field theories at a finite chemical potential
title_fullStr Entanglement entropy in low-energy field theories at a finite chemical potential
title_full_unstemmed Entanglement entropy in low-energy field theories at a finite chemical potential
title_sort Entanglement entropy in low-energy field theories at a finite chemical potential
dc.creator.none.fl_str_mv Morera Navarro, Ivan
Frerot, Iréneé
Polls Martí, Artur
Juliá-Díaz, Bruno
author Morera Navarro, Ivan
author_facet Morera Navarro, Ivan
Frerot, Iréneé
Polls Martí, Artur
Juliá-Díaz, Bruno
author_role author
author2 Frerot, Iréneé
Polls Martí, Artur
Juliá-Díaz, Bruno
author2_role author
author
author
dc.subject.none.fl_str_mv Gravetat quàntica
Termodinàmica
Quantum gravity
Thermodynamics
topic Gravetat quàntica
Termodinàmica
Quantum gravity
Thermodynamics
description We investigate the leading area-law contribution to entanglement entropy in a system described by a general Lagrangian with O(2) symmetry containing first- and second-order time derivatives, namely, breaking the Lorentz invariance. We establish a connection between the Higgs gap present in a symmetry-broken phase and the area-law term for the entanglement entropy in the general nonrelativistic case. Our predictions for the entanglement entropy and correlation length are successfully compared to numerical results in two paradigmatic systems: the Mott insulator to the superfluid transition for ultracold lattice bosons and the ground state of ferrimagnetic systems.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/179876
url https://hdl.handle.net/2445/179876
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1103/PhysRevResearch.2.033016
Physical Review Research, 2020, vol. 2, num. 3, p. 033016
https://doi.org/10.1103/PhysRevResearch.2.033016
info:eu-repo/grantAgreement/EC/H2020/833801
dc.rights.none.fl_str_mv cc-by (c) Morera Navarro, Ivan et al., 2020
https://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Morera Navarro, Ivan et al., 2020
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv Articles publicats en revistes (Física Quàntica i Astrofísica)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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