Statistical Properties of Interacting Bose Gases in Quasi-2D Harmonic Traps

Details Statistical Properties of Interacting Bose Gases in Quasi-2D Harmonic Traps Statistical Properties of Interacting Bose Gases in Quasi-2D Harmonic Traps

2002-03-18

arxiv.org/abs/cond-mat/0203350v1

J.Phys.B: At.Mol.Opt.Phys. 35 (2002) 2105-2116

Physics

Condensed Matter

Soft Condensed Matter

RevTex, 10pages, 4 figures, E-mail: hongweixiong@hotmail.com

Scientific paper

10.1088/0953-4075/35/9/308

The analytical probability distribution of the quasi-2D (and purely 2D) ideal and interacting Bose gas are investigated by using a canonical ensemble approach. Using the analytical probability distribution of the condensate, the statistical properties such as the mean occupation number and particle number fluctuations of the condensate are calculated. Researches show that there is a continuous crossover of the statistical properties from a quasi-2D to a purely 2D ideal or interacting gases. Different from the case of a 3D Bose gas, the interaction between atoms changes in a deep way the nature of the particle number fluctuations.

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