Light-induced ultracold spin-exchange collisions
نویسندگان
چکیده
We study collisional loss rates due to spin-exchange collisions in very-low-intensity Rb magneto-optical traps. The loss rate exhibits an unpredicted intensity dependence for low intensities, accounting for a large disparity between loss rates observed in light-force traps and magnetically confined Bose condensates. Possible collision mechanisms considered include light-altered collision phase shifts, flux enhancement, and excitedstate hyperfine changing collisions.
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