Phys. Rev. Lett. 94, 193001 (2005) [4 pages]Creating Ground State Molecules with Optical Feshbach Resonances in Tight TrapsReceived 21 December 2004; published 17 May 2005 We propose to create ultracold ground state molecules in an atomic Bose-Einstein condensate by adiabatic crossing of an optical Feshbach resonance. We envision a scheme where the laser intensity and possibly also frequency are linearly ramped over the resonance. Our calculations for 87Rb show that for sufficiently tight traps it is possible to avoid spontaneous emission while retaining adiabaticity, and conversion efficiencies of up to 50% can be expected. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.94.193001
DOI:
10.1103/PhysRevLett.94.193001
PACS:
03.75.−b, 32.80.Qk, 33.80.−b, 34.50.Rk
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