D. Petrov 1, 2, Christophe Salomon 3, Gora V. Shlyapnikov 1, 2, 3
Physical Review Letters 93 (2004) 090404
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.
- 1. FOM Institute for Atomic and Molecular Physics,
Institut for Atomic and Molecular Physics - 2. National Research Centre « Kurchatov Institute » (NRC KI),
University of Moscow - 3. Laboratoire Kastler Brossel (LKB (Lhomond)),
CNRS : UMR8552 – Université Paris VI – Pierre et Marie Curie – Ecole Normale Supérieure de Paris – ENS Paris