Relaxation of (2+1)-dimensional classical O(2) symmetric scalar fields

Real time thermalization and relaxation phenomena are studied in the low energy density phase of the (2+1)-dimensional classical O(2) symmetric scalar theory by solving numerically its dynamics. The near-equilibrium decay rate of on-shell waves and the power law governing the large time asymptotics...

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Bibliographic Details
Published in:Physics letters. B 2001-05, Vol.508 (1), p.109-116
Main Authors: Borsányi, Sz, Szép, Zs
Format: Article
Language:English
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Summary:Real time thermalization and relaxation phenomena are studied in the low energy density phase of the (2+1)-dimensional classical O(2) symmetric scalar theory by solving numerically its dynamics. The near-equilibrium decay rate of on-shell waves and the power law governing the large time asymptotics of the off-shell relaxation agree with the analytic results based on linear response theory. The realisation of the Mermin–Wagner theorem is also studied in the final equilibrium ensemble.
ISSN:0370-2693
1873-2445
DOI:10.1016/S0370-2693(01)00443-9