Formation of Ultracold Molecules by Merging Optical Tweezers.
Formation of Ultracold Molecules by Merging Optical Tweezers.
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DOI：
10.1103/physrevlett.130.223401
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发表时间：
2023-02
影响因子：
8.6
通讯作者：
Daniel K. Ruttley;A. Guttridge;Stefan Spence;R. Bird;C. L. Le Sueur;J. Hutson;S. Cornish
中科院分区：
文献类型：
--
作者：
Daniel K. Ruttley;A. Guttridge;Stefan Spence;R. Bird;C. L. Le Sueur;J. Hutson;S. Cornish
我们证明了一个单一的RbCs分子的形成过程中合并的两个光镊，一个包含一个单一的Rb原子和其他一个单一的Cs原子。两个原子最初主要处于各自镊子的运动基态。我们确认分子的形成，并通过测量其结合能建立所形成的分子的状态。我们发现，分子形成的概率可以通过调整合并过程中的陷阱的限制控制，在很好的协议与耦合通道计算。我们表明，使用这种技术从原子到分子的转换效率是磁缔合。
We demonstrate the formation of a single RbCs molecule during the merging of two optical tweezers, one containing a single Rb atom and the other a single Cs atom. Both atoms are initially predominantly in the motional ground states of their respective tweezers. We confirm molecule formation and establish the state of the molecule formed by measuring its binding energy. We find that the probability of molecule formation can be controlled by tuning the confinement of the traps during the merging process, in good agreement with coupled-channel calculations. We show that the conversion efficiency from atoms to molecules using this technique is comparable to magnetoassociation.