论文标题
两个原子的配对相关性和光学镊子中的光相关动力学
Pair Correlations and Photoassociation Dynamics of Two Atoms in an Optical Tweezer
论文作者
论文摘要
我们在光学镊子中研究了两个激光冷却的$^{85} $ rb原子的光相关动力学，并在许多原子集合中揭示了与光缔合的根本不同的行为。我们在两种原子实验中观察到非指数衰减，该实验无法用单个速率系数描述，并在系统对的相关性中找到其起源。这与许多原子光相关动力学形成鲜明对比，后者由单个速率系数的指数衰减控制。我们还研究了三原子系统中的光相结合，从而探测了从两种原子动力学到多原子动力学的过渡。我们的实验揭示了仅通过控制单个原子才能访问的其他反应动力学，并建议光相关可以测量几个原子系统中的对相关性。它进一步展示了我们对单个原子和分子的量子状态的完全控制，从许多原子实验中提供了无法获得的信息。
We investigate the photoassociation dynamics of exactly two laser-cooled $^{85}$Rb atoms in an optical tweezer and reveal fundamentally different behavior to photoassociation in many-atom ensembles. We observe non-exponential decay in our two-atom experiment that cannot be described by a single rate coefficient and find its origin in our system's pair correlation. This is in stark contrast to many-atom photoassociation dynamics, which are governed by exponential decay with a single rate coefficient. We also investigate photoassociation in a three-atom system, thereby probing the transition from two-atom dynamics to many-atom dynamics. Our experiments reveal additional reaction dynamics that are only accessible through the control of single atoms and suggest photoassociation could measure pair correlations in few-atom systems. It further showcases our complete control over the quantum state of individual atoms and molecules, which provides information unobtainable from many-atom experiments.
