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arXiv:1605.09352 · Physics Letters A

Semiclassical and quantum description of an ideal Bose gas in a uniform gravitational field

Rajat K. Bhaduri, W. van Dijk

Published Jun 2, 2016• 3 citations
arXivHTMLPDF
DOI
10.1016/j.physleta.2016.05.055

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The behavior of an ideal D-dimensional boson gas in the presence of a uniform gravitational field is analyzed. It is explicitly shown that, contrary to a long-standing belief, the three-dimensional gas does not undergo Bose-Einstein condensation at finite temperature. On the other hand, Bose-Einstein condensation occurs at $T\ensuremath{\ne}0$ for D=1,2,3D=1,2,3D=1,2,3 if there is a pointlike impurity at the bottom of the vessel containing the gas.