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Description
  • We 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.
  • We 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. (en)
Title
  • Quantum quench influenced by an excited-state phase transition
  • Quantum quench influenced by an excited-state phase transition (en)
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  • Quantum quench influenced by an excited-state phase transition
  • Quantum quench influenced by an excited-state phase transition (en)
skos:notation
  • RIV/00216208:11320/11:10105208!RIV12-GA0-11320___
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  • P(GA202/09/0084), Z(MSM0021620859)
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  • březen
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  • 225454
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  • RIV/00216208:11320/11:10105208
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  • excited-state quantum phase transition; Quantum quench (en)
http://linked.open.../riv/klicoveSlovo
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  • US - Spojené státy americké
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  • [28049D1E057D]
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  • Physical Review A - Atomic Molecular and Optical Physics
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  • 83
http://linked.open...iv/tvurceVysledku
  • Arias, J. M.
  • Cejnar, Pavel
  • Dukelsky, J.
  • García-Ramos, J. E.
  • Pérez-Fernández, P.
  • Relano, A.
http://linked.open...ain/vavai/riv/wos
  • 000287960200009
http://linked.open...n/vavai/riv/zamer
issn
  • 1050-2947
number of pages
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  • 10.1103/PhysRevA.83.033802
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  • 11320
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