Routes towards Anderson-like localization of Bose-Einstein condensates in disordered optical lattices

Bibliographic description

title:	Routes towards Anderson-like localization of Bose-Einstein condensates in disordered optical lattices
author:	Schulte T., Drenkelforth S., Kruse Jens, Ertmer Wolfgang, Arlt Jan, Sacha Krzysztof , Zakrzewski Jakub , Lewenstein Maciej
journal title:	Physical Review Letters
volume:	95
issue:	17
date of publication :	2005
article ID:	170411
ISSN:	0031-9007
eISSN:	1079-7114 1092-0145
DOI:	10.1103/PhysRevLett.95.170411
language:	English
journal language:	English
abstract in English:	We investigate, both experimentally and theoretically, possible routes towards Anderson-like localization of Bose-Einstein condensates in disordered potentials. The dependence of this quantum interference effect on the nonlinear interactions and the shape of the disorder potential is investigated. Experiments with an optical lattice and a superimposed disordered potential reveal the lack of Anderson localization. A theoretical analysis shows that this absence is due to the large length scale of the disorder potential as well as its screening by the nonlinear interactions. Further analysis shows that incommensurable superlattices should allow for the observation of the crossover from the nonlinear screening regime to the Anderson localized case within realistic experimental parameters.
affiliation:	Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
type:	journal article
subtype:	academic paper

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