The condensation of a spin-orbit coupled Bose gas in a uniform gravitational field
In this paper, we consider the effect of a uniform gravitational field on a spin-orbit coupled Bose gas. In a semiclassical approximation, we find that the gravitational field triggers Bose-Einstein condensation at finite temperature. For weak gravitational field, the critical temperature increases...
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Published in | Europhysics letters Vol. 130; no. 5; pp. 56003 - 56008 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
Les Ulis
EDP Sciences, IOP Publishing and Società Italiana di Fisica
01.06.2020
IOP Publishing |
Subjects | |
Online Access | Get full text |
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Summary: | In this paper, we consider the effect of a uniform gravitational field on a spin-orbit coupled Bose gas. In a semiclassical approximation, we find that the gravitational field triggers Bose-Einstein condensation at finite temperature. For weak gravitational field, the critical temperature increases as the gravitational field goes more intense. And it first increases and then decreases along with increasing spin-orbit coupling strength. The heat capacity of the Bose gas varies continuously with the temperature around the critical one, which is different from the one in cases without a spin-orbit coupling. |
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ISSN: | 0295-5075 1286-4854 1286-4854 |
DOI: | 10.1209/0295-5075/130/56003 |