BEC-BCS crossover in an optical lattice

被引：24

作者：

Koetsier, Arnaud ^{[1
]}

Dickerscheid, D. B. M. ^{[1
]}

Stoof, H. T. C. ^{[1
]}

机构：

[1] Univ Utrecht, Inst Theoret Phys, NL-3584 CE Utrecht, Netherlands

来源：

PHYSICAL REVIEW A | 2006年 / 74卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.74.033621

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present the microscopic theory for the BEC-BCS crossover of an atomic Fermi gas in an optical lattice, showing that the Feshbach resonance underlying the crossover in principle induces strong multiband effects. Nevertheless, the BEC-BCS crossover itself can be described by a single-band model since it occurs at magnetic fields that are relatively far away from the Feshbach resonance. A criterion is proposed for the latter, which is obeyed by most known Feshbach resonances in ultracold atomic gases.

引用

页数：4

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