Bose-Einstein Condensate Driven by a Kicked Rotor in a Finite Box

Physics – Atomic Physics

Scientific paper

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7 pages, 8 figures

Scientific paper

10.1209/epl/i2006-10127-4

We study the effect of different heating rates of a dilute Bose gas confined in a quasi-1D finite, leaky box. An optical kicked-rotor is used to transfer energy to the atoms while two repulsive optical beams are used to confine the atoms. The average energy of the atoms is localized after a large number of kicks and the system reaches a nonequilibrium steady state. A numerical simulation of the experimental data suggests that the localization is due to energetic atoms leaking over the barrier. Our data also indicates a correlation between collisions and the destruction of the Bose-Einstein condensate fraction.

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