Two-body transients in coupled atomic-molecular BECs

Details Two-body transients in coupled atomic-molecular BECs Two-body transients in coupled atomic-molecular BECs

2007-07-19

arxiv.org/abs/0707.2963v2

Physics

Atomic Physics

4 pages, 3 figures - typos corrected in formulae

Scientific paper

10.1103/PhysRevLett.100.093001

We discuss the dynamics of an atomic Bose-Einstein condensate when pairs of atoms are converted into molecules by single-color photoassociation. Three main regimes are found and it is shown that they can be understood on the basis of time-dependent two-body theory. In particular, the so-called rogue dissociation regime [Phys. Rev. Lett., 88, 090403 (2002)], which has a density-dependent limit on the photoassociation rate, is identified with a transient regime of the two-atom dynamics exhibiting universal properties. Finally, we illustrate how these regimes could be explored by photoassociating condensates of alkaline-earth atoms.

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