Optimal spin squeezing inequalities detect bound entanglement in spin models
Quantum Physics
2011-11-09 v5 Other Condensed Matter
Statistical Mechanics
Abstract
We determine the complete set of generalized spin squeezing inequalities. These are entanglement criteria that can be used for the experimental detection of entanglement in a system of spin-1/2 particles in which the spins cannot be individually addressed. They can also be used to show the presence of bound entanglement in the thermal states of several spin models.
Cite
@article{arxiv.quant-ph/0702219,
title = {Optimal spin squeezing inequalities detect bound entanglement in spin models},
author = {Geza Toth and Christian Knapp and Otfried Gühne and Hans J. Briegel},
journal= {arXiv preprint arXiv:quant-ph/0702219},
year = {2011}
}
Comments
5 pages, 2 figures, 1 table; small changes, published version