Elastic scattering of sodium and cesium atoms at ultracold temperatures

Zhang, Jicai; Wang, Kedong; Liu, Yufang; Sun, Jinfeng

doi:10.1088/1674-1056/20/9/093401

Chinese Phys. B

2011

DOI: 10.1088/1674-1056/20/9/093401

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Elastic scattering of sodium and cesium atoms at ultracold temperatures

Jicai Zhang¹,

Kedong Wang²,

Yufang Liu³

et al.

Abstract: Zhang Ji-Cai( ) a) † , Wang Ke-Dong( ) a) , Liu Yu-Fang( ) a) , and Sun Jin-Feng( ) a)b)

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Cited by 3 publications

References 29 publications

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An accurate semi-empirical potential model for the a 3Σu+ state of the alkali dimers Na2, K2, Rb2, and Cs2 which reproduces the scattering length

Bauer

Toennies

2019

The Journal of Chemical Physics

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A new four parameter Tang-Toennies type potential model is described for the a 3Σu+ triplet state of the alkali dimers Na2, K2, Rb2, and Cs2. Compared to an earlier three parameter semi-empirical model based on the experimental well depth, De, well location, Re, and the harmonic vibrational frequency, ωe [Lau et al., J. Chem. Phys. 145, 194308 (2016)], the new model is also adjusted to be consistent with the scattering length. The results are shown to have a similar good agreement with the spectroscopic term values as the earlier model with the advantage that the scattering length is properly described. The deviations from recent potentials for Cs2 are discussed.

show abstract

An accurate semi-empirical potential model for the a 3Σu+ state of the alkali dimers Na2, K2, Rb2, and Cs2 which reproduces the scattering length

Bauer

Toennies

2019

The Journal of Chemical Physics

View full text Add to dashboard Cite

show abstract

Accurate semiempirical potential energy curves for the a 3Σ+-state of NaCs, KCs, and RbCs

Schwarzer

Toennies

2021

The Journal of Chemical Physics

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A five parameter semiempirical Tang–Toennies type model is used to describe the potential curves of the a3 Σ+-state of the heteronuclear polar molecules NaCs, KCs, and RbCs. These molecules are of current interest in experiments at ultra-cold conditions to explore the effects of the strong dipole–dipole forces on the collective many-body quantum behavior. New quantum phenomena are also anticipated in systems consisting of atomic species with different fermion/boson statistics. The model parameters are obtained by simultaneously fitting all five of the parameters to the extensive LIF-Fourier transform spectroscopy published by Tiemann and collaborators [e.g., Docenko et al. J. Phys. B: At., Mol. Opt. Phys. 39, S929–S943 (2006)], who also report best fit potential curves. Although the new potentials are in good agreement with the earlier potentials, they have the advantage that they are continuous over the entire range of internuclear distances and have the correct long-range behavior. The scattering lengths for all isotope combinations show good agreement with dedicated experiments where available. The new potentials are also in excellent agreement with combining rules based on the potentials of the homonuclear systems.

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The tunneling phenomena of the Fermi superfluid gases in unitarity by manipulating the Fermi-Fermi scattering length

Ying¹,

Wang²,

Wang³

et al. 2012

Acta Phys. Sin.

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In the present work, we investigate the tunneling dynamics of superfluid Fermi gas in a double-well potential in a unitarity regime by adjusting the Fermi-Fermi scattering length. The scattering length can affect the quantum transition dramatically. In a certain regime, the complete population transfer between two modes can be obtained. However, in some other regimes, the quantum transition can be completely blocked.

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Elastic scattering of sodium and cesium atoms at ultracold temperatures

Abstract: Zhang Ji-Cai( ) a) † , Wang Ke-Dong( ) a) , Liu Yu-Fang( ) a) , and Sun Jin-Feng( ) a)b)

Cited by 3 publications

References 29 publications

An accurate semi-empirical potential model for the a 3Σu+ state of the alkali dimers Na2, K2, Rb2, and Cs2 which reproduces the scattering length

An accurate semi-empirical potential model for the a 3Σu+ state of the alkali dimers Na2, K2, Rb2, and Cs2 which reproduces the scattering length

Accurate semiempirical potential energy curves for the a 3Σ+-state of NaCs, KCs, and RbCs

The tunneling phenomena of the Fermi superfluid gases in unitarity by manipulating the Fermi-Fermi scattering length

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