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Ultracold atomic quantum gases far from equilibrium

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arxiv cond-mat/0608553 v1 pith:NUHCQDVR submitted 2006-08-25 cond-mat.other hep-ph

Ultracold atomic quantum gases far from equilibrium

classification cond-mat.other hep-ph
keywords ultracoldactionapproximationatomicbosecalculatecapturedcomponents
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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