Studies on collective excitations of quasi-two-dimensional Bose-Einstein condensate

Anoop, Ramesh Ramesh, Babu Babu +1 more

Arup Banerjee

罗运文, 陈继胜

In this paper, we investigate excited characteristic of the weakly interacting quasi-one-dimensional(1D) and quasi-two-dimensional(2D) Bose–Einstein condensation(BEC) in harmonic potential trap. The energy spectrum and the analytical expression of the sound velocity are obtained and analyzed. Compared with 3-Dimensional homogeneous Bose-condensed gas occasion, the sound velocity of 2D Bose-Einstein condensation in harmonic potential trap is smaller.

Luo Yun-wen, Jisheng Chen

In this paper, we investigate excited characteristic of the weakly interacting quasi-one-dimensional (1D) and quasi-two-dimensional (2D) Bose—Einstein condensation (BEC) in harmonic potential trap. The energy spectrum and the analytical expression of the sound velocity are obtained and analyzed. Compared with 3-Dimensional homogeneous Bose-condensed gas occasion, the sound velocity of 2D Bose-Einstein condensation in harmonic potential trap is smaller.

Z.-Ch. Wang, Hongbing Yang, Shuting Yin

M. R. Matthews, D. S. Jin, J. R. Ensher +2 more