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dc.contributor.authorPérez Fernández, Pedro
dc.contributor.authorCejnar, P.
dc.contributor.authorArias Carrasco, José Miguel
dc.contributor.authorDukelsky, J.
dc.contributor.authorGarcía Ramos, José Enrique 
dc.contributor.authorRelaño Pérez, Armando
dc.identifier.citationPérez Fernández, P., Cejnar, P., Arias Carrasco, J.M., Dukelsky, J., García Ramos, J.E.: "Quantum quench influenced by an excited-state phase transition". Physical Review A. Vol. 83, n. 3, (2011). DOI: 10.1103/PhysRevA.83.033802en_US
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 the nonintegrable model the evidence is blurred due to chaotic behavior of the system in the region around the critical energy.en_US
dc.description.sponsorshipP.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 Educacion 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 Andalucia (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 Educacion y Ciencia. A.R. is supported by the Spanish program CPAN Consolider-ingenio.
dc.publisherAmerican Physical Societyen_US
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España
dc.subject.otherQuantum phase transitionsen
dc.subject.otherQuantum quenchen
dc.titleQuantum quench influenced by an excited-state phase transitionen_US
dc.relation.projectIDCzech Science Foundation [202/09/0084]
dc.relation.projectIDCzech Ministry of Education [MSM 0021620859]
dc.relation.projectIDFEDER [FIS2009-07277, FIS2008-04189, FIS2006-12783-C03-01, FPA2006-13807-C02-02, FPA2007-63074, FIS2009-11621-C02-01]
dc.relation.projectIDCPAN-Ingenio [CSPD-2007-00042-Ingenio]
dc.relation.projectIDJunta de Andalucia [FQM160 FQM318 P05-FQM437 P07-FQM-02962]
dc.relation.projectIDUniversidad Complutense de Madrid [UCM-910059]

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