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

@article{Tralleroginer2012SuperfluidityAC,
  title={Superfluidity and collective oscillations of trapped Bose-Einstein condensates in a periodical potential},
  author={C. Trallero-giner and V. Lopez-Richard and Y. N'unez-Fern'andez and M. Oliva and G. Marques and M. Chung},
  journal={The European Physical Journal D},
  year={2012},
  volume={66},
  pages={1-5}
}
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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