Bose-Einstein condensation of molecules |
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Authors: | Jochim S Bartenstein M Altmeyer A Hendl G Riedl S Chin C Hecker Denschlag J Grimm R |
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Institution: | Institut für Experimentalphysik, Universit?t Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria. |
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Abstract: | We report on the Bose-Einstein condensation of more than 10(5) Li2 molecules in an optical trap starting from a spin mixture of fermionic lithium atoms. During forced evaporative cooling, the molecules are formed by three-body recombination near a Feshbach resonance and finally condense in a long-lived thermal equilibrium state. We measured the characteristic frequency of a collective excitation mode and demonstrated the magnetic field-dependent mean field by controlled condensate spilling. |
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