The simple entanglement of N-body N-particle pure states is extended to the more general M-body or M-body N-particle states where N=M. Some new features of the M-body N-particle pure states are discussed. An application of the measure to quantify quantum correlations in a Bose-Einstien condensate model is demonstrated.
@article{arxiv.quant-ph/0605153,
title = {M-body Pure State Entanglement},
author = {Feng Pan and J. P. Draayer},
journal= {arXiv preprint arXiv:quant-ph/0605153},
year = {2007}
}