On the 'Strong-Coupling' Generalization of the Bogoliubov Model
Statistical Mechanics
2007-05-23 v2
Abstract
A generalized Bogoliubov model of the Bose gas in the ground state is proposed which properly takes into account both the long-range and short-range spatial boson correlations. It concerns equilibrium characteristics and operates with in-medium Schrodinger equations for the pair wave functions of bosons being the eigenfunctions of the second-order reduced density matrix. The approach developed provides reasonable results for a dilute Bose gas with arbitrary strong interaction between particles (the 'strong-coupling' case) and comes to the canonical Bogoliubov model in the weak-coupling regime.
Keywords
Cite
@article{arxiv.cond-mat/9811405,
title = {On the 'Strong-Coupling' Generalization of the Bogoliubov Model},
author = {A. Yu. Cherny and A. A. Shanenko},
journal= {arXiv preprint arXiv:cond-mat/9811405},
year = {2007}
}
Comments
6 pages, REVTEX, no figures