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Elastic Scattering Properties of Ultracold Potassium Atoms in the Triplet State

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Abstract

The elastic scattering properties of ultracold potassium (39K) atoms in the triplet state (\( a{}^{3}\sum\nolimits_{u}^{ + } {} \)) are investigated using two different kinds of interatomic potentials [the interpolation potential and Lennard-Jones potential (LJ12,6)]. The s-wave scattering lengths for the triplet state are calculated to be 79.4945 \( a_{0} \) and 79.3341 \( a_{0} \), respectively, by employing the Numerov and semiclassical methods. They are in excellent agreement with the recent theoretical results. It shows that the two atomic potentials and calculation methods are applicable to research the interaction between ultracold atoms.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China under Grant No. 51801092, Funding Scheme for Key Scientific Research Projects in Universities of Henan Province under Grant Nos. 19A140005 and 16A140012, the program for Youth Scholar teachers Supporting Plan in Universities of Henan Province under Grant No. 2018GGJS158 and the Key Science and Technology Program of Henan Province under Grant No. 172102210404.

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Authors and Affiliations

  1. Department of Mathematics and Science, Luoyang Institute of Science and Technology, Luoyang, 471023, China

    Q. B. Hu, H. Y. Xiao, J. F. Su, R. R. Sun & Y. S. Zhang

  2. National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, China

    Q. B. Hu

  3. School of Materials Science and Engineering, Northeastern University, Shenyang, 110819, China

    Q. B. Hu

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  1. Q. B. Hu
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  2. H. Y. Xiao
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Correspondence to Y. S. Zhang.

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Hu, Q.B., Xiao, H.Y., Su, J.F. et al. Elastic Scattering Properties of Ultracold Potassium Atoms in the Triplet State. J Low Temp Phys 198, 18–25 (2020). https://doi.org/10.1007/s10909-019-02241-3

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