@article {1276, title = {Two-body transients in coupled atomic-molecular BECs}, journal = {Physical Review Letters}, volume = {100}, year = {2008}, month = {2008/3/3}, abstract = { 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. }, doi = {10.1103/PhysRevLett.100.093001}, url = {http://arxiv.org/abs/0707.2963v2}, author = {Pascal Naidon and Eite Tiesinga and Paul S. Julienne} }