Creating Ground State Molecules with Optical Feshbach Resonances in Tight Traps

Details Creating Ground State Molecules with Optical Feshbach Resonances in Tight Traps Creating Ground State Molecules with Optical Feshbach Resonances in Tight Traps

2004-12-21

arxiv.org/abs/quant-ph/0412166v2

Phys. Rev. Lett. 94, 193001 (2005)

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevLett.94.193001

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 $^{87}$Rb 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.

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