arXiv:quant-ph/0608224 · Journal of Physics A Mathematical and General
Concurrence for general multipartite states
Hoshang Heydari
Abstract
We construct a generalized concurrence for general multipartite states based on local W-class and GHZ-class operators. We explicitly construct the corresponding concurrence for three-partite states. The construction of the concurrence is interesting since it is based on local operators and therefore gives some hints on the classification of multipartite states.