摘要
(1)简要介绍BEC概念的一种含义及BEC形成的条件;(2)着重对外势场中的BEC作了研究,得出了低维情况下产生BEC的条件:当U(x)~xη时,一维情况发生BEC满足η<2;二维情况发生BEC满足η>0。
In this paper, (1) a kind of meaning of the BEC concept and the condition of the BEC formation of synopsis are introduced.(2) we demonstrate the possibility of BEC of an ideal Bose gas confined by one-and two-dimensional power-law traps. One-dimensional systems display BEC in traps that are more confined than parabolic: U(x)~xη, η<2, Two-dimensional systems display BEC for any finite Value of η.
出处
《量子光学学报》
CSCD
2003年第1期27-31,共5页
Journal of Quantum Optics
基金
山西省自然科学基金(20001004)