Sympathetic cooling and collisional properties of a Rb-Cs mixture

被引：44

作者：

Anderlini, M ^{[1
]}

Courtade, E ^{[1
]}

Cristiani, M ^{[1
]}

Cossart, D ^{[1
]}

Ciampini, D ^{[1
]}

Sias, C ^{[1
]}

Morsch, O ^{[1
]}

Arimondo, E ^{[1
]}

机构：

[1] Univ Pisa, INFM, Dipartimento Fis E Fermi, I-56127 Pisa, Italy

来源：

PHYSICAL REVIEW A | 2005年 / 71卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.71.061401

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on measurements of the collisional properties of a mixture of Cs-133 and Rb-87 atoms in a magnetic trap at mu K temperatures. By selectively evaporating the Rb atoms using a radio-frequency field, we achieved sympathetic cooling of Cs down to a few mu K. The interspecies collisional cross section was determined through rethermalization measurements, leading to good agreement with a theoretical prediction of 595a(0) for the triplet s-wave scattering length for Rb in the parallel to F=2,m(F)=2 > and Cs in the parallel to F=4,m(F)=4 > magnetic states. We briefly speculate on the prospects for reaching the Bose-Einstein condensation of Cs inside a magnetic trap through sympathetic cooling.

引用

页数：4

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