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Weakly bound dimers of fermionic atoms

D. S. Petrov·C. Salomon·G. V. Shlyapnikov
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Abstract

We discuss the behavior of weakly bound bosonic dimers formed in a cold Fermi gas at a large positive scattering length $a$ for the interspecies interaction. We find the exact solution for the dimer-dimer elastic scattering and obtain a strong decrease of their collisional relaxation and decay with increasing $a$. The large ratio of the elastic to inelastic rate is promising for achieving Bose-Einstein condensation of the dimers and cooling the condensed gas to very low temperatures.

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D. S. Petrov, C. Salomon, G. V. Shlyapnikov. 2003-08-30. Weakly bound dimers of fermionic atoms. https://doi.org/10.1103/physrevlett.93.090404

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