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Quantum quench influenced by an excited-state phase transition

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dc.contributor.authorPérez Fernández, P.
dc.contributor.authorCejnar, P.
dc.contributor.authorArias, J. M.
dc.contributor.authorDukelsky, J.
dc.contributor.authorGarcía Ramos, J. E.
dc.contributor.authorRelaño Pérez, Armando
dc.date.accessioned2023-06-20T03:46:19Z
dc.date.available2023-06-20T03:46:19Z
dc.date.issued2011-03-03
dc.description©2011 American Physical Society. P.C. acknowledges useful discussions with M. Kastner and J. Hirsch. This work has been partially supported by the Czech Science Foundation (Grant No. 202/09/0084), by the Czech Ministry of Education (Grant No. MSM 0021620859), by the Spanish Ministerio de Educación y Ciencia and the European regional development fund FEDER (Grants No. FIS2009-07277, No. FIS2008-04189, No. FIS2006-12783-C03-01, No. FPA2006 13807-C02-02, No. FPA2007-63074, and No. FIS2009-11621-C02-01), by CPAN Ingenio (Grant No. CSPD-2007-00042 Ingenio), by Junta de Andalucía (Grants No. FQM160, No. FQM318, No. P05-FQM437, and No. P07-FQM-02962), and by the Universidad Complutense de Madrid (Grant No. UCM-910059). P.P-F. is supported by a FPU grant of the Spanish Ministerio de Educación y Ciencia. A.R. is supported by the Spanish program CPAN Consolider-ingenio.
dc.description.abstractWe analyze excited-state quantum phase transitions (ESQPTs) in three schematic (integrable and nonintegrable) models describing a single-mode bosonic field coupled to a collection of atoms. It is shown that the presence of the ESQPT in these models affects the quantum relaxation processes following an abrupt quench in the control parameter. Clear-cut evidence of the ESQPT effects is presented in integrable models, while in a nonintegrable model the evidence is blurred due to chaotic behavior of the system in the region around the critical energy.
dc.description.departmentDepto. de Estructura de la Materia, Física Térmica y Electrónica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipCzech Science Foundation
dc.description.sponsorshipCzech Ministry of Education
dc.description.sponsorshipSpanish Ministerio de Educación y Ciencia
dc.description.sponsorshipFEDER
dc.description.sponsorshipCPAN-Ingenio
dc.description.sponsorshipJunta de Andalucía
dc.description.sponsorshipUniversidad Complutense de Madrid
dc.description.sponsorshipSpanish program CPAN Consolider-ingenio
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/27466
dc.identifier.doi10.1103/PhysRevA.83.033802
dc.identifier.issn1050-2947
dc.identifier.officialurlhttp://dx.doi.org/10.1103/PhysRevA.83.033802
dc.identifier.relatedurlhttp://journals.aps.org/
dc.identifier.urihttps://hdl.handle.net/20.500.14352/44413
dc.issue.number3
dc.journal.titlePhysical Review A
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.projectID202/09/0084
dc.relation.projectIDMSM 0021620859
dc.relation.projectIDFIS2009-07277
dc.relation.projectIDFIS2008-04189
dc.relation.projectIDFIS2006-12783-C03-01
dc.relation.projectIDFPA2006-13807-C02-02
dc.relation.projectIDFPA2007-63074
dc.relation.projectIDFIS2009-11621-C02-01
dc.relation.projectIDCSPD-2007-00042-Ingenio
dc.relation.projectIDFQM160
dc.relation.projectIDFQM318
dc.relation.projectIDP05-FQM437
dc.relation.projectIDP07-FQM-02962
dc.relation.projectIDUCM-910059
dc.rights.accessRightsopen access
dc.subject.cdu536
dc.subject.keywordRadiation-field
dc.subject.keywordSystems
dc.subject.keywordNuclei
dc.subject.keywordModel
dc.subject.keywordDynamics
dc.subject.keywordOrbits
dc.subject.keywordMaser
dc.subject.ucmTermodinámica
dc.subject.unesco2213 Termodinámica
dc.titleQuantum quench influenced by an excited-state phase transition
dc.typejournal article
dc.volume.number83
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