Experimental violation of a cluster state Bell inequality

Details Experimental violation of a cluster state Bell inequality Experimental violation of a cluster state Bell inequality

2005-07-08

arxiv.org/abs/quant-ph/0507086v1

Phys. Rev. Lett. 95, 020403 (2005)

Physics

Quantum Physics

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.95.020403

Cluster states are a new type of multiqubit entangled states with entanglement properties exceptionally well suited for quantum computation. In the present work, we experimentally demonstrate that correlations in a four-qubit linear cluster state cannot be described by local realism. This exploration is based on a recently derived Bell-type inequality [V. Scarani et al., Phys. Rev A 71, 042325 (2005)] which is tailored, by using a combination of three- and four-particle correlations, to be maximally violated by cluster states but not violated at all by GHZ states. We observe a cluster state Bell parameter of $2.59\pm 0.08$, which is more than 7 standard deviations larger than the threshold of 2 imposed by local realism.

Affiliated with

Also associated with

No associations

Rating

Experimental violation of a cluster state Bell inequality 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 Experimental violation of a cluster state Bell inequality, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Experimental violation of a cluster state Bell inequality will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-375282