DPG Phi
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DPG

Berlin 2001 – scientific programme

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Q: Quantenoptik

Q 14: Cooling and Trapping II (joint session A and Q)

Q 14.4: Talk

Tuesday, April 3, 2001, 18:15–18:30, H 104

Photoassociation in a sodium BEC — •J. Denschlag1,2, J. Simsarian1, D. Cho1, C. McKenzie1, K. Helmerson1, S. Rolston1, W.D. Phillips1, F. Fatemi1, K. Jones1, and P. Lett11NIST, Gaithersburg, MD 20899, USA — 2Institut für Experimentalphysik, Universität Innsbruck

report on photo association experiments with sodium atoms from a Bose-Einstein condensate. A photoassociation laser beam of appropriate frequency hits the Bose-Einstein condensate and forms excited molecular states with a lifetime of about 10 ns. The production of molecules is detected as a loss in atom number of the BEC. We present preliminary data where we studied the width of the molecular transition, and the rate at which molecules are formed. We observe a laser power dependent red shift of the molecular transition frequency.


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