Elastic scattering of sodium and cesium atoms at ultracold temperatures

The elastic scattering properties in a mixture of sodium and cesium atoms are investigated at cold and ultracold temperatures. Based on the accurate interatomic potential for the NaCs mixture, the interspecies s-wave scattering lengths, the effective ranges and the p-wave scattering lengths are calc...

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Bibliographic Details
Published inChinese physics B Vol. 20; no. 9; pp. 171 - 174
Main Author 张计才 王克栋 刘玉芳 孙金锋
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.09.2011
Subjects
Cesium
Cross sections
Elastic scattering
Mathematical analysis
Scattering
Sodium
弹性散射
散射特性
散射长度
混合物
相互作用势
超低温
钠
铯原子
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Summary:The elastic scattering properties in a mixture of sodium and cesium atoms are investigated at cold and ultracold temperatures. Based on the accurate interatomic potential for the NaCs mixture, the interspecies s-wave scattering lengths, the effective ranges and the p-wave scattering lengths are calculated by the quantal method and the semiclassical method, respectively. The s-wave scattering lengths are 512.7a0 for the singlet state and 33.4a0 for the triplet state. In addition, the spin-change and elastic cross sections are also calculated, and the g-wave shape resonance is found in the total elastic cross sections.
Bibliography:elastic scattering, s-wave scattering length, spin-change cross section
Zhang Ji-Cai Wang Ke-Dong Liu Yu-Fang and Sun Jin-Feng a） College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007, China b） Department of Physics, Luoyang Normal College, Luoyang 471022, China
The elastic scattering properties in a mixture of sodium and cesium atoms are investigated at cold and ultracold temperatures. Based on the accurate interatomic potential for the NaCs mixture, the interspecies s-wave scattering lengths, the effective ranges and the p-wave scattering lengths are calculated by the quantal method and the semiclassical method, respectively. The s-wave scattering lengths are 512.7a0 for the singlet state and 33.4a0 for the triplet state. In addition, the spin-change and elastic cross sections are also calculated, and the g-wave shape resonance is found in the total elastic cross sections.
11-5639/O4
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ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/20/9/093401