Bose-Einstein condensate in a random potential

An optical speckle potential is used to investigate the static and dynamic properties of a Bose-Einstein condensate in the presence of disorder. With small levels of disorder, stripes are observed in the expanded density profile and strong damping of dipole and quadrupole oscillations is seen. Uncor...

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Bibliographic Details
Published in:	Physical review letters Vol. 95; no. 7; p. 070401
Main Authors:	Lye, J E, Fallani, L, Modugno, M, Wiersma, D S, Fort, C, Inguscio, M
Format:	Journal Article
Language:	English
Published:	United States 12-08-2005
Subjects:	BOSE-EINSTEIN CONDENSATION CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS DENSITY DIPOLES NUMERICAL SOLUTION OSCILLATIONS POTENTIALS QUADRUPOLES RANDOMNESS SUM RULES
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Summary:	An optical speckle potential is used to investigate the static and dynamic properties of a Bose-Einstein condensate in the presence of disorder. With small levels of disorder, stripes are observed in the expanded density profile and strong damping of dipole and quadrupole oscillations is seen. Uncorrelated frequency shifts of the two modes are measured and are explained using a sum-rules approach and by the numerical solution of the Gross-Pitaevskii equation.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.95.070401