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Dynamics of a Bose-Einstein condensate at finite temperature in an atom-optical coherence filter

F. Ferlaino, P. Maddaloni, S. Burger, F. S. Cataliotti, C. Fort, M. Modugno, and M. Inguscio
Phys. Rev. A 66, 011604(R) – Published 22 July 2002
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Abstract

The macroscopic coherent tunneling through the barriers of a periodic potential is used as an atom-optical filter to separate the center of mass of the condensate and the thermal components of a 87Rb mixed cloud. We condense in the combined potential of a laser standing wave superimposed on the axis of a cigar-shaped magnetic trap and induce condensate dipole oscillation in the presence of a static thermal component. The oscillation is damped due to the interaction with the thermal fraction and we investigate the role played by the periodic potential in the damping process.

  • Received 16 January 2002

DOI:https://doi.org/10.1103/PhysRevA.66.011604

©2002 American Physical Society

Authors & Affiliations

F. Ferlaino, P. Maddaloni*, S. Burger, F. S. Cataliotti, C. Fort, M. Modugno, and M. Inguscio

  • INFM–European Laboratory for Nonlinear Spectroscopy (LENS) and Dipartimento di Fisica, Università di Firenze, via Nello Carrara 1, I-50019 Sesto Fiorentino (Firenze), Italy

  • *Also at Dipartimento di Fisica, Università di Padova, via F. Marzolo 8, I-35131 Padova, Italy.

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Vol. 66, Iss. 1 — July 2002

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