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Excited state quantum phase transitions and chaos in the Dicke model

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10127625" target="_blank" >RIV/00216208:11320/12:10127625 - isvavai.cz</a>

  • Result on the web

    <a href="http://http:/dx.doi.org/10.1063/1.4759413" target="_blank" >http://http:/dx.doi.org/10.1063/1.4759413</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1063/1.4759413" target="_blank" >10.1063/1.4759413</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Excited state quantum phase transitions and chaos in the Dicke model

  • Original language description

    In this contribution, the critical behavior of excited state quantum phase transitions (ESQPT's) and its relation to order and chaos in the Dicke model are studied. This model is non-integrable. For comparison, the same problem is studied for the Jaynes-Cummings model which is, somehow, the integrable version of the Dicke model. The existence of an ESQPT is confirmed in both cases. However, in the Dicke model the signatures of criticality in excited states are blurred by the onset of quantum chaos. It is concluded that the order-to-chaos transition just below the critical energy gives us a chance to study the impact of chaotic dynamics on the signatures of ESQPTs.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    BG - Nuclear, atomic and molecular physics, accelerators

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2012

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    AIP Conference Proceedings

  • ISBN

    978-0-7354-1100-5

  • ISSN

    0094-243X

  • e-ISSN

  • Number of pages

    6

  • Pages from-to

    318-323

  • Publisher name

    American Institute of Physics

  • Place of publication

    New York

  • Event location

    Mexico

  • Event date

    May 14, 2012

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article

    000310687200037