Decay of an ultracold fermionic lithium gas near a Feshbach resonance

被引：117

作者：

Dieckmann, K ^{[1
]}

Stan, CA

Gupta, S

Hadzibabic, Z

Schunck, CH

Ketterle, W

机构：

[1] Harvard Univ, MIT, Dept Phys, Ctr Ultracold Atoms, Cambridge, MA 02139 USA

[2] MIT, Elect Res Lab, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.89.203201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We studied the magnetic field dependence of the inelastic decay of an ultracold, optically trapped fermionic Li-6 gas of different spin compositions. The spin mixture of the two lowest hyperfine states showed two decay resonances at 550 and 680 G, consistent with the predicted Feshbach resonances for elastic s-wave collisions. The observed lifetimes of several hundred ms are much longer than the expected time for Cooper pair formation and the phase transition to superfluidity in the vicinity of the Feshbach resonance.

引用

页码：203201 / 203201

页数：4

共 29 条

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