Physics – Quantum Physics
Scientific paper
2005-12-13
Physics
Quantum Physics
5 pages
Scientific paper
Consider a scenario where $N$ separated quantum systems are measured, each with one among two possible dichotomic observables. Assume that the $N$ events corresponding to the choice and performance of the measurement in each site are space-like separated. In the present paper, the correlations among the measurement outcomes that arise in this scenario are analyzed. It is shown that all extreme points of this convex set are attainable by measuring $N$-qubit pure-states with projective observables. This result allows the possibility of using known algorithms in order decide whether some correlations are achievable within quantum mechanics or not. It is also proven that if an $N$-partite state $\rho$ violates a given Bell inequality, then, $\rho$ can be transformed by stochastic local operations into an $N$-qubit state that violates the same Bell inequality by an equal or larger amount.
No associations
LandOfFree
Extremal quantum correlations for N parties with two dichotomic observables per site does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Extremal quantum correlations for N parties with two dichotomic observables per site, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extremal quantum correlations for N parties with two dichotomic observables per site will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-36899