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arXiv · 1010.1087

Single Cs Atoms as Collisional Probes in a large Rb Magneto-Optical Trap

Claudia Weber·Shincy John·Nicolas Spethmann·Dieter Meschede·Artur Widera
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Abstract

We study cold inter-species collisions of Caesium and Rubidium in a strongly imbalanced system with single and few Cs atoms. Observation of the single atom fuorescence dynamics yields insight into light-induced loss mechanisms, while both subsystems can remain in steady-state. This significantly simplifies the analysis of the dynamics, as Cs-Cs collisions are effectively absent and the majority component remains unaffected, allowing us to extract a precise value of the Rb-Cs collision parameter. Extending our results to ground state collisions would allow to use single neutral atoms as coherent probes for larger quantum systems.

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Claudia Weber, Shincy John, Nicolas Spethmann, Dieter Meschede, Artur Widera. 2010-10-06. Single Cs Atoms as Collisional Probes in a large Rb Magneto-Optical Trap. https://doi.org/10.1103/physreva.82.042722

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