Anomalous particle-number fluctuations in a three-dimensional interacting Bose-Einstein condensate
Soft Condensed Matter
2009-11-10 v1 Statistical Mechanics
Abstract
The particle-number fluctuations originated from collective excitations are investigated for a three-dimensional, repulsively interacting Bose-Einstein condensate (BEC) confined in a harmonic trap. The contribution due to the quantum depletion of the condensate is calculated and the explicit expression of the coefficient in the formulas denoting the particle-number fluctuations is given. The results show that the particle-number fluctuations of the condensate follow the law and the fluctuations vanish when temperature approaches to the BEC critical temperature.
Keywords
Cite
@article{arxiv.cond-mat/0401112,
title = {Anomalous particle-number fluctuations in a three-dimensional interacting Bose-Einstein condensate},
author = {Shujuan Liu and Hongwei Xiong and Guoxiang Huang and Zhijun Xu},
journal= {arXiv preprint arXiv:cond-mat/0401112},
year = {2009}
}
Comments
RevTex, 4 pages