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Ratchet effect for cold atoms in an optical lattice



Ratchet effect for cold atoms in an optical lattice



Physical Review Letters 94(11): 110603



The possibility of realizing a directed current for a quantum particle in a flashing asymmetric potential is investigated. It is found that quantum resonances, where the value of the effective Planck constant is equal to an integer or half-integer multiple of pi, give rise to a directed current. The effect should be readily observable in experiments.

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Accession: 050115177

Download citation: RISBibTeXText

PMID: 15903839

DOI: 10.1103/physrevlett.94.110603


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