Abstract
Chemical reactions at ultracold temperatures have attracted great interest in recent years. The atom-exchange reaction between an atom and a weakly bound Feshbach molecule near overlapping Feshbach resonances presents a simple and ideal example of the controlled ultracold chemistry. The energy released in the reaction can be tuned to be very small and thus the reaction products can be trapped and detected, allowing the study of state-to-state reaction dynamics. The reaction can be tuned from the exothermic regime to the endothermic regime, which allows to study the threshold behavior of an endothermic reaction. In this paper, we review the recent progress in studying the atom-exchange reaction involving Feshbach molecules in ultracold atomic gases.
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This work was supported by the National Key R&D Program of China (Grant No. 2018YFA0306502), the National Natural Science Foundation of China (Grant No. 11521063), the Chinese Academy of Sciences, and the Anhui Initiative in Quantum Information Technologies.
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Nan, J., Zhao, B. Magnetically tunable atom-exchange process involving ultracold weakly bound Feshbach molecules. Sci. China Phys. Mech. Astron. 63, 253001 (2020). https://doi.org/10.1007/s11433-019-1476-1
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DOI: https://doi.org/10.1007/s11433-019-1476-1