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Nonthermal fixed points and the functional renormalization group

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 نشر من قبل Jurgen Berges
 تاريخ النشر 2008
  مجال البحث فيزياء
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Nonthermal fixed points represent basic properties of quantum field theories, in addition to vacuum or thermal equilibrium fixed points. The functional renormalization group on a closed real-time path provides a common framework for their description. For the example of an O(N) symmetric scalar theory it reveals a hierarchy of fixed point solutions, with increasing complexity from vacuum and thermal equilibrium to nonequilibrium.



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