☆ 4.8 Article

ac-Driven Atomic Quantum Motor

PHYSICAL REVIEW LETTERS (2009)

期刊

PHYSICAL REVIEW LETTERS

卷 102, 期 23, 页码 -

出版社

AMER PHYSICAL SOC

DOI: 10.1103/PhysRevLett.102.230601

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-

类别

Physics, Multidisciplinary

资金

DFG [HA1517/31-1]
German Excellence Initiative Nanosystems Initiative Munich (NIM).''

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Reagent

摘要

We propose 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 nonzero value. We also demonstrate that this quantum motor performs work against a constant load.

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