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Generalized coherent state representation of Bose-Einstein condensates

V. Chernyak, S. Choi, S. Mukamel

cond-mat.softarXiv:cond-mat/0301327

Abstract

We show that the quantum many-body state of Bose-Einstein condensates (BEC) consistent with the time-dependent Hartree-Fock-Bogoliubov (TDHFB) equations is a generalized coherent state (GCS). At zero temerature, the non-condensate density and the anomalous non-condensate correlation are not independent, allowing us to elimiate one of the three variables in the TDHFB.

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