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

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

2010-10-06

arxiv.org/abs/1010.1087v1

Phys. Rev. A 82, 042722 (2010)

Physics

Quantum Physics

6 pages, 4 figures

Scientific paper

10.1103/PhysRevA.82.042722

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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