Analytical approach to relaxation dynamics of condensed Bose gases
arXiv:1008.0714 · doi:10.1016/j.aop.2010.11.001
Abstract
The temporal evolution of a perturbation of the equilibrium distribution of a condensed Bose gas is investigated using the kinetic equation which describes collision between condensate and noncondensate atoms. The dynamics is studied in the low momentum limit where an analytical treatment is feasible. Explicit results are given for the behavior at large times in different temperature regimes.
25 pages, 3 figures. Typos corrected. Final version to appear in Annals of Physics