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Ultracold atomic quantum gases far from equilibrium

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 نشر من قبل Jurgen Berges
 تاريخ النشر 2006
  مجال البحث فيزياء
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We calculate the time evolution of a far-from-equilibrium initial state of a non-relativistic ultracold Bose gas in one spatial dimension. The non-perturbative approximation scheme is based on a systematic expansion of the two-particle irreducible effective action in powers of the inverse number of field components. This yields dynamic equations which contain direct scattering, memory and off-shell effects that are not captured in mean-field theory.

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