Breaking BEC
Abstract In this work quantum corrections to the classical evolution of a relativistic scalar condensate are studied. The problem is approached by means of two different perturbative approaches: the 2-particle-irreducible (2PI) effective action and the expansion in the self-coupling. In the weak cou...
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SpringerOpen
2020-07-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | http://link.springer.com/article/10.1007/JHEP07(2020)212 |
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doaj-93ee702d3bd043e387b487574121ad822020-11-25T01:24:06ZengSpringerOpenJournal of High Energy Physics1029-84792020-07-012020712410.1007/JHEP07(2020)212Breaking BECA. Kovtun0M. Zantedeschi1Max-Planck-Institut für PhysikMax-Planck-Institut für PhysikAbstract In this work quantum corrections to the classical evolution of a relativistic scalar condensate are studied. The problem is approached by means of two different perturbative approaches: the 2-particle-irreducible (2PI) effective action and the expansion in the self-coupling. In the weak coupling regime the decoherence of the classical state is observed. The corresponding timescale is identified with the quantum break-time.http://link.springer.com/article/10.1007/JHEP07(2020)212Nonperturbative EffectsGlobal SymmetriesField Theories in Lower Dimensions |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
A. Kovtun M. Zantedeschi |
| spellingShingle |
A. Kovtun M. Zantedeschi Breaking BEC Journal of High Energy Physics Nonperturbative Effects Global Symmetries Field Theories in Lower Dimensions |
| author_facet |
A. Kovtun M. Zantedeschi |
| author_sort |
A. Kovtun |
| title |
Breaking BEC |
| title_short |
Breaking BEC |
| title_full |
Breaking BEC |
| title_fullStr |
Breaking BEC |
| title_full_unstemmed |
Breaking BEC |
| title_sort |
breaking bec |
| publisher |
SpringerOpen |
| series |
Journal of High Energy Physics |
| issn |
1029-8479 |
| publishDate |
2020-07-01 |
| description |
Abstract In this work quantum corrections to the classical evolution of a relativistic scalar condensate are studied. The problem is approached by means of two different perturbative approaches: the 2-particle-irreducible (2PI) effective action and the expansion in the self-coupling. In the weak coupling regime the decoherence of the classical state is observed. The corresponding timescale is identified with the quantum break-time. |
| topic |
Nonperturbative Effects Global Symmetries Field Theories in Lower Dimensions |
| url |
http://link.springer.com/article/10.1007/JHEP07(2020)212 |
| work_keys_str_mv |
AT akovtun breakingbec AT mzantedeschi breakingbec |
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