Collision properties of ultracold 133Cs atoms

被引：130

作者：

Leo, PJ ^{[1
]}

Williams, CJ ^{[1
]}

Julienne, PS ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.85.2721

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a theoretical analysis of numerous magnetically tunable Feshbach resonances measured by Chin ct al. [preceding Letter, Phys. Rev. Lett. 85, 2717 (2000)] at fields of up to 25 mT. This analysis provides the most accurate characterization of the collisional properties of ground state Cs atoms currently available and clearly shows, in contrast to previous work, that Bose-Einstein condensation of Cs-133 cannot be ruled out. The X(1)Sigma(g)(+) and a(3)Sigma(u), scattering lengths are constrained to (280 +/- 10)a(0) and (2400 +/- 100)a(0), respectively (1a(0) = 0.0529177 nm), and the van der Waals Cg coefficient to 6890 +/- 35 a.u. (1 a.u. = 0.0957345 x 10(-24) J . nm(6)).

引用

页码：2721 / 2724

页数：4

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