Zero-temperature Properties of Attractive Bose-Einstein Condensate by Correlated Many-body Approach

@article{Chakrabarti2009ZerotemperaturePO,
  title={Zero-temperature Properties of Attractive Bose-Einstein Condensate by Correlated Many-body Approach},
  author={Barnali Chakrabarti and Tapan Kumar Das and Pankaj Kumar Debnath},
  journal={Journal of Low Temperature Physics},
  year={2009},
  volume={157},
  pages={527-540}
}
We employ a correlated many-body approach to study Bose-Einstein condensation of a magnetically trapped gas of 7Li atoms. The properties of a trapped gas are strongly influenced by the attractive interactions and two-body correlations. The correlations lower the interaction energy. The lowlying collective frequencies have also been calculated. In addition we explore the frequency of surface modes as a function of angular momentum. 

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