Preparation of $^{87}$Rb and $^{133}$Cs in the motional ground state of a single optical tweezer
S. Spence,
R. V. Brooks,
D. K. Ruttley
et al.
Abstract:We report simultaneous Raman sideband cooling of a single 87 Rb atom and a single 133 Cs atom held in separate optical tweezers at 814 nm and 938 nm, respectively. Starting from outside the Lamb-Dicke regime, after 45 ms of cooling we measure probabilities to occupy the three-dimensional motional ground state of 0.86 +0.03 −0.04 for Rb and 0.95 +0.03 −0.04 for Cs. Our setup overlaps the Raman laser beams used to cool Rb and Cs, reducing hardware requirements by sharing equipment along the same beam path. The c… Show more
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