Bose-Einstein condensation in self-consistent mean-field theory

V. I. Yukalov; E. P. Yukalova

doi:10.1088/0953-4075/47/9/095302

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arXiv · 1404.4848

Bose-Einstein condensation in self-consistent mean-field theory

V. I. Yukalov·E. P. Yukalova

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Abstract

There is a wide-spread belief in the literature on Bose-Einstein condensation of interacting atoms that all variants of mean-field theory incorrectly describe the condensation phase transition, exhibiting, instead of the necessary second-order transition, a first-order transition, even for weakly interacting Bose gas. In the present paper, it is shown that a self-consistent mean-field approach is the sole mean-field theory that provides the correct second-order condensation transition for Bose systems with atomic interactions of arbitrary strength, whether weak or strong.

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V. I. Yukalov, E. P. Yukalova. 2014-04-18. Bose-Einstein condensation in self-consistent mean-field theory. https://doi.org/10.1088/0953-4075/47/9/095302

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