Atom-molecule equilibration in a degenerate Fermi gas with resonant interactions

被引：11

作者：

Williams, JE ^{[1
]}

Nikuni, T

Nygaard, N

Clark, CW

机构：

[1] Natl Inst Stand & Technol, Div Electron & Opt Phys, Gaithersburg, MD 20899 USA

[2] Tokyo Univ Sci, Fac Sci, Dept Phys, Shinjuku Ku, Tokyo 1628601, Japan

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2004年 / 37卷 / 21期

关键词：

D O I：

10.1088/0953-4075/37/21/L01

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a nonequilibrium kinetic theory describing atom-molecule population dynamics in a two-component Fermi gas with a Feshbach resonance. Key collision integrals emerge that govern the relaxation of the atom-molecule mixture to chemical and thermal equilibrium. Our focus is on the pseudogap regime where molecules form above the superfluid transition temperature. In this regime, we formulate a simple model for the atom-molecule population dynamics. The model predicts the saturation of molecule formation that has been observed in recent experiments, and indicates that a dramatic enhancement of the atom-molecule conversion efficiency occurs at low temperatures.

引用

页码：L351 / L357

页数：7

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