Bloch Waves and Bloch Bands of Bose-Einstein Condensates in Optical Lattices

Biao Wu , Roberto B. Diener , Qian Niu

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classification ❄️ cond-mat

keywords blochbandbose-einsteincondensatesinstabilitylatticesopticalwaves

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Bloch waves and Bloch band of Bose-Einstein Condensates in optical lattices are studied. We provide further evidence for the loop structure in the Bloch band, and compute the critical values of the mean-field interaction strength for the Landau instability and the dynamical instability.

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Bloch Waves and Bloch Bands of Bose-Einstein Condensates in Optical Lattices

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