Bose-Einstein Condensate in a Random Potential

J. E. Lye, L. Fallani, M. Modugno, D. S. Wiersma, C. Fort, and M. Inguscio
Phys. Rev. Lett. 95, 070401 – Published 9 August 2005

Abstract

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.

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  • Received 7 December 2004

DOI:https://doi.org/10.1103/PhysRevLett.95.070401

©2005 American Physical Society

Authors & Affiliations

J. E. Lye1,*, L. Fallani1, M. Modugno1,2, D. S. Wiersma1,3, C. Fort1, and M. Inguscio1

  • 1LENS, Dipartimento di Fisica, and INFM Università di Firenze, via Nello Carrara 1, I-50019 Sesto Fiorentino (FI), Italy
  • 2BEC-INFM Center, Università di Trento, I-38050 Povo (TN), Italy
  • 3INFM-MATIS, Catania, Italy

  • *Electronic address: lye@lens.unifi.it

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Vol. 95, Iss. 7 — 12 August 2005

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