论文标题
冷原子三合会中碰撞动力学的直接测量
Direct Measurements of Collisional Dynamics in Cold Atom Triads
论文作者
论文摘要
引入用于诱捕原子的光学镊子为操纵几体系统开辟了出色的机会。在这里，我们介绍了原子三合会的第一个自下而上的组装。我们直接通过单个事件级别的非弹性碰撞观察到原子损失，从而克服了区分一，二和三粒子过程的许多原子实验中的重大挑战。我们测量了对三体损失的强烈抑制，这并未通过目前三体过程的理论充分解释。损失的抑制可能表明由于有吸引力的短距离相互作用和低维限制的相互作用而存在局部抗相关性。我们的方法论在实验性的几体动力学中开辟了一个有希望的途径。
The introduction of optical tweezers for trapping atoms has opened remarkable opportunities for manipulating few-body systems. Here, we present the first bottom-up assembly of atom triads. We directly observe atom loss through inelastic collisions at the single event level, overcoming the substantial challenge in many-atom experiments of distinguishing one-, two-, and three-particle processes. We measure a strong suppression of three-body loss, which is not fully explained by the presently availably theory for three-body processes. The suppression of losses could indicate the presence of local anti-correlations due to the interplay of attractive short range interactions and low dimensional confinement. Our methodology opens a promising pathway in experimental few-body dynamics.
