Manipulating the critical temperature for the superfluid phase transition in trapped atomic Fermi gases

被引:9
|
作者
Search, CP [1 ]
Pu, H [1 ]
Zhang, W [1 ]
Anderson, BP [1 ]
Meystre, P [1 ]
机构
[1] Univ Arizona, Ctr Opt Sci, Tucson, AZ 85721 USA
来源
PHYSICAL REVIEW A | 2002年 / 65卷 / 06期
基金
美国国家科学基金会;
关键词
D O I
10.1103/PhysRevA.65.063616
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We examine the effect of the trapping potential on the critical temperature T-C for the BCS transition to a superfluid state in trapped atomic gases of fermions. T-C for an arbitrary power-law trap is calculated in the Thomas-Fermi approximation. For anharmonic traps, T-C can be increased by several orders of magnitude in comparison to a harmonic trap. Our theoretical results indicate that, in practice, one could manipulate the critical temperature for the BCS phase transition by shaping the traps confining the atomic Fermi gases.
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页数:4
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