中国物理B ›› 2009, Vol. 18 ›› Issue (3): 1019-1024.doi: 10.1088/1674-1056/18/3/029

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Scattering properties of the ultracold 133Cs2 triplet state

杜丙阁1, 张计才1, 李伟1, 朱遵略1, 孙金锋2   

  1. (1)College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007, China; (2)College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007, China;Department of Physics, Luoyang Normal College, Luoyang 471022, China
  • 收稿日期:2008-05-07 修回日期:2008-07-18 出版日期:2009-03-20 发布日期:2009-03-20
  • 基金资助:
    Project supported by the National Science Foundation of China (Grant No 10574039 ) and the National Science Foundation of Henan Province, China (Grant No 2008A140007).

Scattering properties of the ultracold 133Cs2 triplet state

Sun Jin-Feng(孙金锋)a)b), Du Bing-Ge(杜丙阁)a)†, Zhang Ji-Cai(张计才)a), Li Wei(李伟)a), and Zhu Zun-Lue(朱遵略)a)   

  1. a College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007, China; b Department of Physics, Luoyang Normal College, Luoyang 471022, China
  • Received:2008-05-07 Revised:2008-07-18 Online:2009-03-20 Published:2009-03-20
  • Supported by:
    Project supported by the National Science Foundation of China (Grant No 10574039 ) and the National Science Foundation of Henan Province, China (Grant No 2008A140007).

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摘要： The elastic scattering properties of ultracold ^{133}Cs2 triplet state are investigated in detail. We construct a potential curve of the 133Cs2 triplet state, based on the latest ab initio molecular potential data and show how the scattering parameters are obtained by using three methods: the Numerov method, the semiclassical method and the variable phase method, where the scattering lengths of the 133Cs2 triplet state, i.e. 301.79a0, 300.67a0 and 310.81a0 are obtained respectively, with a0 being the Bohr radius. We also calculate the effective range and the number of bound states for the 133Cs2 triplet state. Our results are in agreement with the recent experimental data and the theoretical calculations. This confirms that the results of the scattering properties of the ultracold ^{133}Cs2 triplet state, calculated by using these three methods, are reliable.

关键词: scattering length, effective range, variable phase method

Abstract: The elastic scattering properties of ultracold 133Cs2 triplet state are investigated in detail. We construct a potential curve of the 133Cs2 triplet state, based on the latest ab initio molecular potential data and show how the scattering parameters are obtained by using three methods: the Numerov method, the semiclassical method and the variable phase method, where the scattering lengths of the 133Cs2 triplet state, i.e. 301.79a0, 300.67a0 and 310.81a0 are obtained respectively, with a0 being the Bohr radius. We also calculate the effective range and the number of bound states for the 133Cs2 triplet state. Our results are in agreement with the recent experimental data and the theoretical calculations. This confirms that the results of the scattering properties of the ultracold 133Cs2 triplet state, calculated by using these three methods, are reliable.

Key words: scattering length, effective range, variable phase method

中图分类号:  (Scattering of atoms and molecules)

  • 34.50.-s
34.20.Cf (Interatomic potentials and forces) 34.20.-b (Interatomic and intermolecular potentials and forces, potential energy surfaces for collisions) 31.15.A- (Ab initio calculations) 31.15.xg (Semiclassical methods)