Martin Hofmann, Andreas Osterloh, Otfried Gühne
Published 2013-09-09, updated 2014-04-30Version 2
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.
Comments: 15 pages, 5 figures, versions 2 contains new acknowledgements and updated references
Journal: Phys. Rev. B 89, 134101 (2014)
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