Inelastic and elastic collision rates for triplet states of ultracold strontium

被引：41

作者：

Traverso, A. ^{[1
]}

Chakraborty, R. ^{[1
]}

de Escobar, Y. N. Martinez ^{[1
]}

Mickelson, P. G. ^{[1
]}

Nagel, S. B. ^{[1
]}

Yan, M. ^{[1
]}

Killian, T. C. ^{[1
]}

机构：

[1] Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA

来源：

PHYSICAL REVIEW A | 2009年 / 79卷 / 06期

基金：

美国国家科学基金会;

关键词：

atomic collisions; electronic structure; manifolds; radiation pressure; strontium; triplet state;

D O I：

10.1103/PhysRevA.79.060702

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report measurement of the inelastic and elastic collision rates for Sr-88 atoms in the (5s5p)P-3(0) state in a crossed-beam optical dipole trap. Since the (5s5p)P-3(0) state is the lowest level of the triplet manifold, large loss rates indicate the importance of principle-quantum-number-changing collisions at short range. We also provide an estimate of the collisional loss rates for the (5s5p)P-3(2) state. Large loss-rate coefficients for both states indicate that evaporative cooling toward quantum degeneracy in these systems is unlikely to be successful.

引用

页数：4

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