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

F. Ferlaino·P. Maddaloni·S. Burger·F. S. Cataliotti·C. Fort·M. Modugno·M. Inguscio
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Abstract

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

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F. Ferlaino, P. Maddaloni, S. Burger, F. S. Cataliotti, C. Fort, M. Modugno, M. Inguscio. 2002-02-21. Dynamics of a Bose-Einstein condensate at finite temperature in an atomoptical coherence filter. https://doi.org/10.1103/physreva.66.011604

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