Effect of optical disorder and single defects on the expansion of a Bose-Einstein condensate in a one-dimensional waveguide

Year: 2005

Authors: Fort C., Fallani L., Guarrera V., Lye JE., Modugno M., Wiersma D., Inguscio M.

Autors Affiliation: Univ Florence, LENS, Dipartimento Fis, I-50019 Sesto Fiorentino, FI, Italy;
Univ Florence, INFM, I-50019 Sesto Fiorentino, FI, Italy;
Univ Trent, BEC, INFM Ctr, Povo, Italy;
Univ Florence, LENS, Dipartimento Matemat Appl, I-50019 Sesto Fiorentino, FI, Italy;
INFM, MATIS, Catania, Italy

Abstract: We investigate the one-dimensional expansion of a Bose-Einstein condensate in an optical guide in the presence of a random potential created with optical speckles. With the speckle the expansion of the condensate is strongly inhibited. A detailed investigation has been carried out varying the experimental conditions and checking the expansion when a single optical defect is present. The experimental results are in good agreement with numerical calculations based on the Gross-Pitaevskii equation.


Volume: 95 (17)      Pages from: 170410-1  to: 170410-4

KeyWords: localization
DOI: 10.1103/PhysRevLett.95.170410

Citations: 244
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