Detecting and Quantifying Entanglement via Bayesian Updating

Details Detecting and Quantifying Entanglement via Bayesian Updating Detecting and Quantifying Entanglement via Bayesian Updating

2008-06-25

arxiv.org/abs/0806.4165v3

Physics

Quantum Physics

superseded by 0908.0265 and 0908.0267

Scientific paper

We show how a straightforward Bayesian updating procedure allows one to detect and quantify entanglement from any finite set of measurement results. The measurements do not have to be tomographically complete, and may consist of POVMs rather than von Neumann measurements. One obtains a probability that one's state is entangled and an estimate of any desired entanglement measure, including their error bars. As an example we consider (tomographically incomplete) spin correlation measurements on both 2-qubit and 3-qubit states. As byproducts we obtain estimates of the volume of entangled states vs. states that violate a given Bell inequality for both pure and mixed states, and an inequality that relates the expectation value of the Bell operator to the negativity.

Affiliated with

Also associated with

No associations

Rating

Detecting and Quantifying Entanglement via Bayesian Updating 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 Detecting and Quantifying Entanglement via Bayesian Updating, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detecting and Quantifying Entanglement via Bayesian Updating will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-163138