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arXiv · 1801.05905

Dynamical process of optically trapped singlet ground state $^{85}$Rb$^{133}$Cs molecules produced via short-range photoassociation

Zhonghao Li·Ting Gong·Zhonghua Ji·Yanting Zhao·Liantuan Xiao·Suotang Jia
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Abstract

We investigate the dynamical process of optically trapped X$^{1}$$\Sigma$$^{+}$ (v" = 0) state $^{85}$Rb$^{133}$Cs molecules distributing in J" = 1 and J" = 3 rotational states. The considered molecules, formed from short-range photoassociation of mixed cold atoms, are subsequently confined in a crossed optical dipole trap. Based on a phenomenological rate equation, we provide a detailed study of the dynamics of $^{85}$Rb$^{133}$Cs molecules during the loading and holding processes. The inelastic collisions of $^{85}$Rb$^{133}$Cs molecules in the X$^{1}$$\Sigma$$^{+}$ (v" = 0, J" = 1 and J" = 3) states with ultracold $^{85}$Rb (or $^{133}$Cs) atoms are measured to be 1.0 (2)$\times$10$^{-10}$ cm$^{3}$s$^{-1}$ (1.2 (3)$ \times$ 10$^{-10}$ cm$^{3}$s$^{-1}$). Our work provides a simple and generic procedure for studying the dynamical process of trapped cold molecules in the singlet ground states.

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Zhonghao Li, Ting Gong, Zhonghua Ji, Yanting Zhao, Liantuan Xiao, Suotang Jia. 2018-01-18. Dynamical process of optically trapped singlet ground state $^{85}$Rb$^{133}$Cs molecules produced via short-range photoassociation. https://doi.org/10.1039/c7cp07756d

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