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arXiv · 2001.05141

Direct Measurements of Collisional Dynamics in Cold Atom Triads

L. A. Reynolds·E. Schwartz·U. Ebling·M. Weyland·J. Brand·M. F. Andersen
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Abstract

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.

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L. A. Reynolds, E. Schwartz, U. Ebling, M. Weyland, J. Brand, M. F. Andersen. 2020-01-15. Direct Measurements of Collisional Dynamics in Cold Atom Triads. https://doi.org/10.1103/physrevlett.124.073401

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