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arXiv · 1408.0615

Ground state of a homogeneous Bose gas of hard spheres

V. I. Yukalov·E. P. Yukalova
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Abstract

The ground state of a homogeneous Bose gas of hard spheres is treated in self-consistent mean-field theory. It is shown that this approach provides an accurate description of the ground state of a Bose-Einstein condensed gas for arbitrarily strong interactions. The results are in good agreement with Monte Carlo numerical calculations. Since all other mean-field approximations are valid only for very small gas parameters, the present self-consistent theory is a unique mean-field approach allowing for an accurate description of Bose systems at arbitrary values of the gas parameter.

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V. I. Yukalov, E. P. Yukalova. 2014-08-04. Ground state of a homogeneous Bose gas of hard spheres. https://doi.org/10.1103/physreva.90.013627

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