We present a very simple model for realizing directed transport with cold atoms in a pair of periodically flashed optical lattices. The origin of this ratchet effect is explained and its robustness demonstrated under imperfections typical of cold atom experiments. We conclude that our model offers a clear-cut way to implement directed transport in an atom optical experiment.
机构:
Russian Acad Sci, VI Ilichev Pacific Oceanol Inst, Far Eastern Branch, Baltiiskaya Ul 43, Vladivostok 690041, RussiaRussian Acad Sci, VI Ilichev Pacific Oceanol Inst, Far Eastern Branch, Baltiiskaya Ul 43, Vladivostok 690041, Russia
Prants, S. V.
Kon'kov, L. E.
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机构:
Russian Acad Sci, VI Ilichev Pacific Oceanol Inst, Far Eastern Branch, Baltiiskaya Ul 43, Vladivostok 690041, RussiaRussian Acad Sci, VI Ilichev Pacific Oceanol Inst, Far Eastern Branch, Baltiiskaya Ul 43, Vladivostok 690041, Russia