A probability density characterization of multipartite entanglement is tested on the one-dimensional quantum Ising model in a transverse field. The average and second moment of the probability distribution are numerically shown to be good indicators of the quantum phase transition. We comment on multipartite entanglement generation at a quantum phase transition.
@article{arxiv.quant-ph/0612098,
title = {Multipartite entanglement characterization of a quantum phase transition},
author = {G. Costantini and P. Facchi and G. Florio and S. Pascazio},
journal= {arXiv preprint arXiv:quant-ph/0612098},
year = {2009}
}