Rectified momentum transport for a kicked Bose-Einstein Condensate

Abstract

We report the experimental observation of rectified momentum transport for a Bose-Einstein Condensate kicked at the Talbot time (quantum resonance) by an optical standing wave. Atoms are initially prepared in a superposition of the 0 and -2*hbar*kl momentum states using an optical pi/2 pulse. By changing the relative phase of the superposed states, a momentum current in either direction along the standing wave may be produced. We offer an interpretation based on matter wave interference, showing that the observed effect is uniquely quantum.

4 Pages, 4 Figures. Accepted for publication Phys. Rev. Lett. June 2007

References in corpus (2)

• Quantum ratchets in dissipative chaotic systems
• Resonant nonlinear quantum transport for a periodically kicked Bose condensate

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