Scaling of genuine multiparticle entanglement at a quantum phase transition
arXiv:1309.2217 · doi:10.1103/PhysRevB.89.134101
Abstract
We investigate the scaling and spatial distribution of genuine multiparticle entanglement in three- and four-spin reduced states of the one-dimensional XY-model at the quantum phase transition. We observe a logarithmic divergence and show that genuine three- and four-particle entanglement obeys finite-size scaling.
15 pages, 5 figures, versions 2 contains new acknowledgements and updated references