Physics – Quantum Physics
Scientific paper
2011-08-03
Physics
Quantum Physics
Scientific paper
10.1142/S021974991100843X
Quantum correlations resulting in violations of Bell inequalities have generated a lot of interest in quantum information science and fundamental physics. In this paper, we address some questions that become relevant in Bell-type tests involving systems with local dimension greater than 2. For CHSH-Bell tests within 2-dimensional subspaces of such high-dimensional systems, it has been suggested that experimental violation of Tsirelson's bound indicates that more than 2-dimensional entanglement was present. We explain that the overstepping of Tsirelson's bound is due to violation of fair sampling, and can in general be reproduced by a separable state, if fair sampling is violated. For a class of Bell-type inequalities generalized to d-dimensional systems, we then consider what level of violation is required to guarantee d-dimensional entanglement of the tested state, when fair sampling is satisfied. We find that this can be used as an experimentally feasible test of d-dimensional entanglement for up to quite high values of d.
Andersson Erika
Dada Adetunmise C.
No associations
LandOfFree
On Bell inequality violations with high-dimensional systems 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 On Bell inequality violations with high-dimensional systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On Bell inequality violations with high-dimensional systems will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-663414