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arXiv · 0902.0489

ac-driven atomic quantum motor

A. V. Ponomarev·S. Denisov·P. Hanggi
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Abstract

We invent an ac-driven quantum motor consisting of two different, interacting ultracold atoms placed into a ring-shaped optical lattice and submerged in a pulsating magnetic field. While the first atom carries a current, the second one serves as a quantum starter. For fixed zero-momentum initial conditions the asymptotic carrier velocity converges to a unique non-zero value. We also demonstrate that this quantum motor performs work against a constant load.

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A. V. Ponomarev, S. Denisov, P. Hanggi. 2009-06-09. ac-driven atomic quantum motor. https://doi.org/10.1103/physrevlett.102.230601

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