Multipartite Entanglement in Non-Equilibrium Quantum Phase Transition in a Collective Atomic System

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dc.creatorKapale, Kishore T.
dc.creatorAgarwal, Girish S.
dc.date2008-03-10
dc.date.accessioned2026-07-07T09:26:07Z
dc.date.available2026-07-07T09:26:07Z
dc.descriptionWe study multipartite entanglement in non-equilibrium quantum phase transition (NEQPT) attainable in a coherently driven atomic ensemble undergoing collective decay. The NEQPT arises in the steady state of the system as the drive field strength is varied in comparison with the decay parameter. A close connection is observed between the critical behavior and the multi-partite entanglement in the system determined via the von Neumann entropy. The derivative of the von Neumann entropy shows Lambda-type behavior typical of the second order phase transitions. We further show that the calculated bi- and tri- partite entropies satisfy the Lieb inequality.
dc.description4 pages, 7 figures
dc.identifierhttps://arxiv.org/abs/0803.1499
dc.identifierhttp://arxiv.org/abs/0803.1499
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/156637
dc.subjectQuantum Physics
dc.titleMultipartite Entanglement in Non-Equilibrium Quantum Phase Transition in a Collective Atomic System
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