Suppression of molecular decay in ultracold gases without Fermi statistics

Details Suppression of molecular decay in ultracold gases without Fermi statistics Suppression of molecular decay in ultracold gases without Fermi statistics

2007-11-21

arxiv.org/abs/0711.3238v1

Phys. Rev. Lett. 100, 163201 (2008)

Physics

Atomic Physics

Scientific paper

10.1103/PhysRevLett.100.163201

We study inelastic processes for ultracold three-body systems in which only one interaction is resonant. We have found that the decay rates for weakly bound molecules due to collisions with other atoms can be suppressed not only without fermionic statistics but also when bosonic statistics applies. In addition, we show that at ultracold temperatures three-body recombination involving a single resonant pair of atoms leads mainly to formation of weakly bound molecules which, in turn, are stable against decay. These results indicate that recombination in three-component atomic gases can be used as an efficient mechanism for molecular formation, allowing the achievement of high molecular densities.

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