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dc.contributor.authorGarcía Ramos, José Enrique 
dc.contributor.authorArias Carrasco, José Miguel
dc.contributor.authorCejnar, P.
dc.contributor.authorDukelsky, J.
dc.contributor.authorPérez Fernández, Pedro
dc.contributor.authorRelaño Pérez, Armando
dc.identifier.citationGarcía Ramos, J.E., Arias Carrasco, J.M., Cejnar, P., Dukelsky, J., Pérez Fernández, P., Relaño Pérez, A.: "Decoherence and quantum quench: their relationship with excited state quantum phase transitions". AIP Conference Proceedings, Vol. 1488, pág. 309-317 (2012)en_US
dc.identifier.issn1551-7616 (online)
dc.descriptionComunicación presentada a: Meeting on Beauty in Physics - Theory and Experiment in Honor of Francesco Lachello on the Occasion of his 70th Birthday Location: México, may 14-18, 2012
dc.description.abstractWe study the similarities and differences between the phenomena of Quantum Decoherence and Quantum Quench in presence of an Excited State Quantum Phase Transition (ESQPT).We analyze, on one hand, the decoherence induced on a single qubit by the interaction with a two-level boson system with critical internal dynamics and, on the other, we treat the quantum relaxation process that follows an abrupt quench in the control parameter of the system Hamiltonian. We explore how the Quantum Decoherence and the quantum relaxation process are affected by the presence of an ESQPT. We conclude that the dynamics of the qubit or the quantum relaxation process change dramatically when the system passes through a continuous ESQPT.en_US
dc.publisherAmerican Institute of Physicsen_US
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España
dc.subject.otherQuantum decoherenceeng
dc.subject.otherQuantum quencheng
dc.subject.otherExcited state quantum phase transitioneng
dc.titleDecoherence and quantum quench: their relationship with excited state quantum phase transitionsen_US

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