title: Long-range correlations of density in a Bose-Einstein condensate expanding in a random potential.
abstract: We study correlations of atomic density in a weakly interacting Bose-Einstein condensate, expanding diffusively in a random potential. We show that these correlations are long range and that they are strongly enhanced at long times. The density at distant points exhibits negative correlations.
authors.affiliation: Laboratoire de Physique et Modélisation des Milieux Condensés, Université Joseph Fourier, CNRS, 25 rue des Martyrs, BP 166, 38042 Grenoble, France.
authors.forename: N
authors.initials: N
authors.lastname: Cherroret
authors.forename: S E
authors.initials: SE
authors.lastname: Skipetrov