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Science 11 February 2000: Vol. 287. no. 5455, pp. 1016 - 1019 DOI: 10.1126/science.287.5455.1016
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Reports
Molecules in a Bose-Einstein Condensate
Roahn Wynar,
R. S. Freeland,
D. J. Han,
C. Ryu,
D. J. Heinzen
*
State-selected rubidium-87 molecules were created at rest in a
dilute Bose-Einstein condensate of rubidium-87 atoms with coherent free-bound stimulated Raman transitions. The transition rate exhibited a resonance line shape with an extremely narrow width as small as 1.5 kilohertz. The precise shape and position of the resonance are
sensitive to the mean-field interactions between the molecules and the
atomic condensate. As a result, we were able to measure the
molecule-condensate interactions. This method allows molecular binding
energies to be determined with unprecedented accuracy and is of
interest as a mechanism for the generation of a molecular Bose-Einstein
condensate.
Department of Physics, The University of Texas, Austin, TX
78712, USA.
*
To whom correspondence should be addressed. E-mail:
heinzen{at}physics.utexas.edu
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