S-Wave Scattering Properties for Na–K Cold Collisions
ZHANG Ji-Cai1** , ZHU Zun-Lue1 , SUN Jin-Feng1,2 , LIU Yu-Fang1
1 College of Physics and Electronic Engineering, Henan Normal University, Xinxiang 4530072 Department of Physics, Luoyang Normal College, Luoyang 471022
Abstract ：Scattering properties of ultracold atoms are sensitive to the interatomic potential. Based on the accurate triplet least-bound state energy, we calculate the triplet s-wave scattering length for 23 Na–40 K. The scattering length is ?814.1?31.3 +29 a 0 with a 0 being the Bohr radius. By using the mass scaling method, those scattering lengths are also obtained for 23 Na–41 K and 23 Na–39 K. The degenerate internal state approximation is used to estimate the scattering data of atoms colliding in different spin states.
收稿日期: 2012-11-09
出版日期: 2013-03-02
:
34.20.Cf
(Interatomic potentials and forces)
34.50.Cx
(Elastic; ultracold collisions)
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2013, Vol. 30 
