%0 Journal Article
%T Thermalization in one- plus two-body ensembles for dense interacting boson systems
%A N. D. Chavda
%A V. K. B. Kota
%A V. Potbhare
%J Physics
%D 2012
%I arXiv
%R 10.1016/j.physleta.2012.08.054
%X Employing one plus two-body random matrix ensembles for bosons, temperature and entropy are calculated, using different definitions, as a function of the two-body interaction strength \lambda for a system with 10 bosons (m=10) in five single particle levels (N=5). It is found that in a region \lambda \sim \lambda_t, different definitions give essentially same values for temperature and entropy, thus defining a thermalization region. Also, (m,N) dependence of \lambda_t has been derived. It is seen that \lambda_t is much larger than the \lambda values where level fluctuations change from Poisson to GOE and strength functions change from Breit-Wigner to Gaussian.
%U http://arxiv.org/abs/1205.6758v2