Locally accessible information: how much can the parties gain by cooperating?
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 inaccessible information.
Badziag
Piotr
P
Department of Mathematics and Physics, Mälardalens Högskola, S-721 23 Västerås, Sweden.
Horodecki
Michał
M
Sen De
Aditi
A
Sen
Ujjwal
U