Multipartite quantum non-locality under local decoherence

Details Multipartite quantum non-locality under local decoherence Multipartite quantum non-locality under local decoherence

2012-04-11

arxiv.org/abs/1204.2562v1

Physics

Quantum Physics

6 pages, 4 figures

Scientific paper

We study the non-local properties of two-qubit maximally-entangled and N-qubit Greenberger-Horne-Zeilinger states under local decoherence. We show that the (non)resilience of entanglement under local depolarization or dephasing is not necessarily equivalent to the (non)resilience of Bell-inequality violations. Apart from entanglement and Bell-inequality violations, we consider also non-locality as quantified by the non-local content of correlations, and provide several examples of anomalous behaviors, both in the bipartite and multipartite cases. In addition, we study the practical implications of these anomalies on the usefulness of noisy Greenberger-Horne-Zeilinger states as resources for non-locality-based physical protocols given by communication complexity problems. There, we provide examples of quantum gains improving with the number of particles that coexist with exponentially-decaying entanglement and non-local contents.

Affiliated with

Also associated with

No associations

Rating

Multipartite quantum non-locality under local decoherence 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 Multipartite quantum non-locality under local decoherence, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multipartite quantum non-locality under local decoherence will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-311282