Feshbach resonances in mixtures of ultracold 6Li and 87Rb gases

被引：75

作者：

Deh, B. ^{[1
]}

Marzok, C. ^{[1
]}

Zimmermann, C. ^{[1
]}

Courteille, Ph. W. ^{[1
]}

机构：

[1] Univ Tubingen, Inst Phys, D-72076 Tubingen, Germany

来源：

PHYSICAL REVIEW A | 2008年 / 77卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.77.010701

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on the observation of two Feshbach resonances in collisions between ultracold Li-6 and Rb-87 atoms in their respective hyperfine ground states vertical bar F,m(F)>=vertical bar 1/2,1/2 > and vertical bar 1,1 >. The resonances show up as trap losses for the Li-6 cloud induced by inelastic Li-Rb-Rb three-body collisions. The magnetic field values where they occur represent important benchmarks for an accurate determination of the interspecies interaction potentials. A broad Feshbach resonance located at 1066.92 G opens interesting prospects for the creation of ultracold heteronuclear molecules. We furthermore observe a strong enhancement of the narrow p-wave Feshbach resonance in collisions of Li-6 atoms at 158.55 G in the presence of a dense Rb-87 cloud. The effect of the Rb-87 cloud is to introduce Li-Li-Rb three-body collisions occurring at a higher rate than Li-Li-Li collisions.

引用

页数：4

共 42 条

[1] EVAPORATIVE COOLING IN A CROSSED DIPOLE TRAP [J].