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Production of Long-Lived Ultracold Li2 Molecules from a Fermi gas

J. Cubizolles·T. Bourdel·S. J. J. M. F. Kokkelmans·G. V. Shlyapnikov·C. Salomon
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Abstract

We create weakly-bound Li2 molecules from a degenerate two component Fermi gas by sweeping a magnetic field across a Feshbach resonance. The atom-molecule transfer efficiency can reach 85% and is studied as a function of magnetic field and initial temperature. The bosonic molecules remain trapped for 0.5 s and their temperature is within a factor of 2 from the Bose-Einstein condensation temperature. A thermodynamical model reproduces qualitatively the experimental findings.

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J. Cubizolles, T. Bourdel, S. J. J. M. F. Kokkelmans, G. V. Shlyapnikov, C. Salomon. 2003-08-01. Production of Long-Lived Ultracold Li2 Molecules from a Fermi gas. https://doi.org/10.1103/physrevlett.91.240401

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