Permutation-invariant monotones for multipartite entanglement characterization

Details Permutation-invariant monotones for multipartite entanglement characterization Permutation-invariant monotones for multipartite entanglement characterization

2008-04-22

arxiv.org/abs/0804.3461v1

Physics

Quantum Physics

Submitted to Phys.Rev.A

Scientific paper

10.1103/PhysRevA.78.012343

In this work we consider the permutational properties of multipartite entanglement monotones. Based on the fact that genuine multipartite entanglement is a property of the entire multi-qubit system, we argue that ideal definitions for its characterizing quantities must be permutation-invariant. Using this criterion, we examine the three 4-qubit entanglement monotones introduced by Osterloh and Siewert [Phys. Rev. A. 72, 012337]. By expressing them in terms of quantities whose permutational properties can be easily derived, we find that one of these monotones is not permutation-invariant. We propose a permutation-invariant entanglement monotone to replace it, and show that our new monotone properly measures the genuine 4-qubit entanglement in 4-qubit cluster-class states. Our results provide some useful insights in understanding multipartite entanglement.

Affiliated with

Also associated with

No associations

Rating

Permutation-invariant monotones for multipartite entanglement characterization 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 Permutation-invariant monotones for multipartite entanglement characterization, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Permutation-invariant monotones for multipartite entanglement characterization will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-675033