Atomic localization caused by the asymmetry of the Landau-Zener transitions |
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| Authors: | VYu Argonov |
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| Institution: | Laboratory of Geophysical Hydrodynamics, Pacific Oceanological Institute of the Russian Academy of Sciences, 43, Baltiiskaya Street, Vladivostok 690041, Russia |
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| Abstract: | The motion of an atomic wave packet in a standing light wave can be described in terms of two periodic potentials. Single atom may perform Landau-Zener (LZ) transitions between these two energy states. In this Letter we have found regimes when atom is localized in the momentum space in the vicinity of its initial momentum. We argue that this localization is caused by the asymmetry of LZ transitions (i.e. probability of tunneling depends on its direction) due to the interference. |
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| Keywords: | Quantum interference Coherent localization Atomic optics Asymmetric tunneling |
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