Generation of Heteronuclear Molecules in a Double-Well Potential: Role of Quantum Tunneling
量子遂穿在双阱异核分子形成过程中的作用(英文）

In this paper, we studied the role of quantum tunneling in molecular formation through the mechanism of photoassociation of a two-species atomic Bose-Einstein condensate confined in a double-well potential. The double-well potential can be generated experimentally by a magnetic harmonic trap and a center barrier, which was formed using a blue-detuned laser beam or a radio-frequency source. For different preparations of the initial atoms and in the presence of appropriate light field, we calculated the short-time quantum dynamics of the system, and studied the mean-field effects numerically. It was found that both the tunneling strength and the initial state of preparation have significant impacts on the dynamic behaviors of the system. The different situations of homonuclear molecular creations and the effects of quantized photoassociation light on atom-molecule transformation are discussed.