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arXiv · 1107.4899

Superfluidity and collective oscillations of trapped Bose-Einstein condensates in a periodical potential

C. Trallero-Giner·V. Lopez-Richard·Y. Núñez-Fernández·Maurice Oliva·Ming-Chiang Chung
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Abstract

Based on a unified theoretical treatment of the 1D Bogoliubov-de Genes equations, the superfluidity phenomenon of the Bose-Einstein condensates (BEC) loaded into trapped optical lattice is studied. Within the perturbation regime, an all-analytical framework is presented enabling a straightforward phenomenological mapping of the collective excitation and oscillation character of a trapped BEC where the available experimental configurations also fit.

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C. Trallero-Giner, V. Lopez-Richard, Y. Núñez-Fernández, Maurice Oliva, Ming-Chiang Chung. 2011-12-16. Superfluidity and collective oscillations of trapped Bose-Einstein condensates in a periodical potential. https://doi.org/10.1140/epjd%2Fe2012-30179-0

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