ac-driven atomic quantum motor

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.

4 pages, 4 figures

References in corpus (4)

• Artificial Brownian motors: Controlling transport on the nanoscale
• Optical ferris wheel for ultracold atoms
• Control of Interaction-Induced Dephasing of Bloch Oscillations
• Periodically driven Quantum Ratchets: Symmetries and Resonances

Cited by in corpus (5)

• Periodic energy transport and entropy production in quantum electronics
• General approach for dealing with dynamical systems with spatiotemporal periodicities
• Rapidly-oscillating scatteringless non-Hermitian potentials and the absence of Kapitza stabilization
• Directed motion of doublons and holes in periodically driven Mott insulators
• Field-assisted doublon manipulation in the Hubbard model. A quantum doublon ratchet