Locally accessible information: How much can the parties gain by cooperating?
Quantum Physics
2009-10-20 v3
Abstract
We investigate measurements of bipartite ensembles restricted to local operations and classical communication and find a universal Holevo-like upper bound on the locally accessible information. We analyze our bound and exhibit a class of states which saturate it. Finally, we link the bound to the problem of quantification of the nonlocality of the operations necessary to extract locally unaccessible information.
Cite
@article{arxiv.quant-ph/0304040,
title = {Locally accessible information: How much can the parties gain by cooperating?},
author = {Piotr Badziag and Michal Horodecki and Aditi Sen De and Ujjwal Sen},
journal= {arXiv preprint arXiv:quant-ph/0304040},
year = {2009}
}
Comments
4 pages, no figures, RevTeX4; v2: a conjecture partially proven, results unchanged; v3: small changes in presentation, published version