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Anderson localization of matter waves in tailored disordered potentials

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arxiv 1104.2314 v2 pith:CRHBXTDI submitted 2011-04-12 cond-mat.quant-gas cond-mat.dis-nnquant-ph

Anderson localization of matter waves in tailored disordered potentials

classification cond-mat.quant-gas cond-mat.dis-nnquant-ph
keywords localizationandersondisorderdisorderedenergyincreaseparticletailored
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We show that, in contrast to immediate intuition, Anderson localization of noninteracting particles induced by a disordered potential in free space can increase (i.e., the localization length can decrease) when the particle energy increases, for appropriately tailored disorder correlations. We predict the effect in one, two, and three dimensions, and propose a simple method to observe it using ultracold atoms placed in optical disorder. The increase of localization with the particle energy can serve to discriminate quantum versus classical localization.

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