Düsseldorf 2007 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 64: Poster Quantengase
Q 64.26: Poster
Donnerstag, 22. März 2007, 16:30–18:30, Poster C
Quantum transport of matter waves in optical speckle potentials — •Robert Kuhn1, Christian Miniatura2, Dominique Delande3, Olivier Sigwarth1, and Cord Müller1 — 1Universität Bayreuth — 2Institut Non-Lineaire de Nice — 3Laboratoire Kastler Brossel, Paris
We study quantum transport properties of ultracold atoms propagating in a disordered optical potential. Within the framework of a microscopic diagrammatic perturbation theory we derive a general expression for the disorder-averaged probability density of the expanding atomic cloud for any initial phase space distribution. We calculate weak localization corrections to the diffusion constant and determine the threshold to the Anderson localized regime.