Quantum quench influenced by an excited-state phase transition

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10105208" target="_blank" >RIV/00216208:11320/11:10105208 - isvavai.cz</a>
Result on the web
<a href="http://pra.aps.org/abstract/PRA/v83/i3/e033802" target="_blank" >http://pra.aps.org/abstract/PRA/v83/i3/e033802</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevA.83.033802" target="_blank" >10.1103/PhysRevA.83.033802</a>

Result language
angličtina
Original language name
Quantum quench influenced by an excited-state phase transition
Original language 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.
Czech name
—
Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BE - Theoretical physics
OECD FORD branch
—

Project
<a href="/en/project/GA202%2F09%2F0084" target="_blank" >GA202/09/0084: Collective phenomena in interacting many-body systems</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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