Thermodynamics of rotating Bose gases in a trap

Details Thermodynamics of rotating Bose gases in a trap Thermodynamics of rotating Bose gases in a trap

2010-08-06

arxiv.org/abs/1008.1192v1

Chin. Phys. Lett. 28, 060306 (2011)

Physics

Condensed Matter

Quantum Gases

4 pages, 1 figure

Scientific paper

Novel ground state properties of rotating Bose gases have been intensively studied in the context of neutral cold atoms. We investigate the rotating Bose gas in a trap from a thermodynamic perspective, taking the charged ideal Bose gas in magnetic field (which is equivalent to a neutral gas in a synthetic magnetic field) as an example. It is indicated that the Bose-Einstein condensation temperature is irrelevant to the magnetic field, conflicting with established intuition that the critical temperature decreases with the field increasing. The specific heat and Landau diamagnetization also exhibit intriguing behaviors. In contrast, we demonstrate that the condensation temperature for neutral Bose gases in a rotating frame drops to zero in the fast rotation limit, signaling a non-condensed quantum phase in the ground state.

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