Effect of Optical Disorder and Single Defects on the Expansion of a Bose-Einstein Condensate in a One-Dimensional Waveguide

2005/07/06 by C. Fort, L. Fallani, Vera Guarrera +7 · 266 citations
Chemistry · Physics and Astronomy · #Bose–Einstein condensate #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Optics #Physics #Quantum mechanics #Speckle pattern #Spectroscopy and Laser Applications #Strong Light-Matter Interactions #Waveguide #cond-mat.other

paper · pdf · doi:10.1103/physrevlett.95.170410

published in Physical Review Letters 95(17), 170410 (American Physical Society) · 5 pages, 5 figures

arxiv created 2005/07/06 · openalex publication_date 2005/10/21 · arxiv updated 2015/02/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

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.

Citations

• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Phase diagram of bosonic atoms in two-color superlattices

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