Phys. Rev. Lett. 95, 063202 (2005) [4 pages]Atom-Molecule Dark States in a Bose-Einstein CondensateReceived 30 May 2005; published 5 August 2005 We have created a dark quantum superposition state of a Rb Bose-Einstein condensate and a degenerate gas of Rb2 ground-state molecules in a specific rovibrational state using two-color photoassociation. As a signature for the decoupling of this coherent atom-molecule gas from the light field, we observe a striking suppression of photoassociation loss. In our experiment the maximal molecule population in the dark state is limited to about 100 Rb2 molecules due to laser induced decay. The experimental findings can be well described by a simple three mode model. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.95.063202
DOI:
10.1103/PhysRevLett.95.063202
PACS:
34.50.Rk, 03.75.Nt, 32.80.Pj, 42.50.Gy
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