Localization of matter waves in two-dimensional disordered optical potentials

We consider ultracold atoms in 2D disordered optical potentials and calculate microscopic quantities characterizing matter wave quantum transport in the noninteracting regime. We derive the diffusion constant as a function of all relevant microscopic parameters and show that coherent multiple scatte...

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Bibliographic Details
Published in:Physical review letters 2005-12, Vol.95 (25), p.250403.1-250403.4, Article 250403
Main Authors: KUHN, R. C, MINIATURA, C, DELANDE, D, SIGWARTH, O, MÜLLER, C. A
Format: Article
Language:English
Subjects:
ATOMIC AND MOLECULAR PHYSICS
ATOMS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
DIFFUSION
Exact sciences and technology
GREEN FUNCTION
MATTER
MULTIPLE SCATTERING
Physics
POTENTIALS
TWO-DIMENSIONAL CALCULATIONS
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Summary:We consider ultracold atoms in 2D disordered optical potentials and calculate microscopic quantities characterizing matter wave quantum transport in the noninteracting regime. We derive the diffusion constant as a function of all relevant microscopic parameters and show that coherent multiple scattering induces significant weak localization effects. In particular, we find that even the strong localization regime is accessible with current experimental techniques and calculate the corresponding localization length.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.95.250403