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
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
BG - Nuclear, atomic and molecular physics, accelerators
OECD FORD branch
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Result continuities
Project
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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
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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