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arxiv: cond-mat/0009185 · v1 · submitted 2000-09-12 · ❄️ cond-mat

Gravity-induced Wannier-Stark ladder in an optical lattice

classification ❄️ cond-mat
keywords laddermetastableopticalstateswannier-starkacceleratedatomsband
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We discuss the dynamics of ultracold atoms in an optical potential accelerated by gravity. The positions and widths of the Wannier-Stark ladder of resonances are obtained as metastable states. The metastable Wannier-Bloch states oscillate in a single band with the Bloch period. The width of the resonance gives the rate transition to the continuum.

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