Decoherence effects in the dynamics of interacting ultracold bosons in disordered lattices
Laboratoire de Physique des Lasers, Atomes et Molécules, Université Lille 1 Sciences et Technologies, CNRS, 59655 Villeneuve d'Ascq Cedex, France
Revised: 15 January 2013
Published online: 11 March 2013
We study the interplay of disorder, interactions, and decoherence induced by spontaneous emission process. Interactions are introduced in the Anderson model via a mean-field approximation, and a simple model allows us to take into account spontaneous emission effects. Numerical simulations in different dynamical regimes and physical pictures for the mechanisms at play are discussed. We demonstrated the existence of scaling laws on the width of the initial state.
© EDP Sciences, Springer-Verlag, 2013