arXiv:cond-mat/0608553·v1·cond-mat.other
Ultracold atomic quantum gases far from equilibrium
T. Gasenzer🇩🇪 · J. Berges🇩🇪 · M.G. Schmidt🇺🇸 · M. Seco🇺🇸
Abstract
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.
Comments: 4 pages, Proc. Int. Conf. Strong and Electroweak Matter, SEWM 2006; Nucl. Phys. A, to be published