Collective molecule formation in a degenerate Fermi gas via a feshbach resonance

被引：37

作者：

Javanainen, J

Kostrun, M

Zheng, Y

Carmichael, A

Shrestha, U

Meinel, PJ

Mackie, M

Dannenberg, O

Suominen, KA

机构：

[1] Univ Connecticut, Dept Phys, Storrs, CT 06269 USA

[2] Helsinki Inst Phys, FIN-00014 Helsinki, Finland

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 20期

基金：

芬兰科学院; 美国国家科学基金会; 美国国家航空航天局;

关键词：

D O I：

10.1103/PhysRevLett.92.200402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We model collisionless collective conversion of a degenerate Fermi gas of atoms into bosonic molecules via a Feshbach resonance, treating the bosonic molecules as a classical field and seeding the pairing amplitudes with random phases. A dynamical instability of the Fermi sea against association with molecules drives the conversion. The model qualitatively reproduces several experimental observations [Regal et al., Nature (London) 424, 47 (2003)]. We predict that the initial temperature of the Fermi gas sets the limit for the efficiency of atom-molecule conversion.

引用

页码：200402 / 1

页数：4

共 21 条

[1] Achieving a BCS transition in an atomic Fermi gas [J].