Quantum phases and entanglement properties of an extended Dicke model

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F17%3A10368687" target="_blank" >RIV/00216208:11320/17:10368687 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.aop.2017.04.005" target="_blank" >http://dx.doi.org/10.1016/j.aop.2017.04.005</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.aop.2017.04.005" target="_blank" >10.1016/j.aop.2017.04.005</a>

Result language
angličtina
Original language name
Quantum phases and entanglement properties of an extended Dicke model
Original language description
We study a simple model describing superradiance in a system of two-level atoms interacting with a single-mode bosonic field. The model permits a continuous crossover between integrable and partially chaotic regimes and shows a complex thermodynamic and quantum phase structure. Several types of excited-state quantum phase transitions separate quantum phases that are characterized by specific energy dependences of various observables and by different atom field and atom atom entanglement properties. We observe an approximate revival of some states from the weak atom field coupling limit in the strong coupling regime.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics

Project
<a href="/en/project/GA13-07117S" target="_blank" >GA13-07117S: Statistical approaches to quantum many-body systems</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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