Resonance theory of the crossover from Bardeen-Cooper-Schrieffer superfluidity to Bose-Einstein condensation in a dilute Fermi gas

被引：100

作者：

Milstein, JN ^{[1
]}

Kokkelmans, SJJMF

Holland, MJ

机构：

[1] Univ Colorado, Joint Inst Lab Astrophys, Boulder, CO 80309 USA

[2] Natl Inst Stand & Technol, Boulder, CO 80309 USA

来源：

PHYSICAL REVIEW A | 2002年 / 66卷 / 04期

关键词：

D O I：

10.1103/PhysRevA.66.043604

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a description of the behavior of a superfluid gas of fermions in the presence of a Feshbach resonance over the complete range of magnetic field detunings. Starting from a resonance Hamiltonian, we exploit a functional method to describe the continuous behavior from Bardeen-Cooper-Schrieffer to Bose-Einstein condensation type superfluidity. Our results show an ability for a resonance system to exhibit a high critical temperature comparable to the Fermi temperature. The results are derived in a manner that is shown to be consistent with the underlying microscopic scattering physics.

引用

页数：6

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