Characterizing Genuine Multisite Entanglement in Isotropic Spin Lattices
Abstract
We consider a class of large superposed states, obtained from dimer coverings on spin-1/2 isotropic lattices, whose potential usefulness ranges from organic molecules to quantum computation. We show that they are genuinely multiparty entangled, irrespective of the geometry and dimension of the isotropic lattice. We then present an efficient method to characterize the genuine multisite entanglement in the case of isotropic square spin-1/2 lattices, with short-range dimer coverings. We use this iterative analytical method to calculate the multisite entanglement of finite-sized lattices, which through finite-size scaling, enables us to obtain the estimate of the multisite entanglement of the infinite square lattice. The method can be a useful tool to investigate other single- and multisite properties of such states.
Cite
@article{arxiv.1211.3877,
title = {Characterizing Genuine Multisite Entanglement in Isotropic Spin Lattices},
author = {Himadri Shekhar Dhar and Aditi Sen De and Ujjwal Sen},
journal= {arXiv preprint arXiv:1211.3877},
year = {2013}
}
Comments
5 + 1 pages, 1 + 1 figures, Supplemetal Material included, REVTeX 4.1, published version