Bose-Einstein Condensate Driven by a Kicked Rotor in a Finite Box
K. Henderson, H. Kelkar, T. C. Li, B. Gutierrez-Medina, M. G. Raizen
Abstract
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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