Physics – Quantum Physics
Scientific paper
2000-01-20
Physics
Quantum Physics
30 pages, Latex, to appear in J Phys A
Scientific paper
10.1088/0305-4470/33/9/312
Some new identities for quantum variance and covariance involving commutators are presented, in which the density matrix and the operators are treated symmetrically. A measure of entanglement is proposed for bipartite systems, based on covariance. This works for two- and three-component systems but produces ambiguities for multicomponent systems of composite dimension. Its relationship to angular momentum dispersion for symmetric symmetric spin states is described.
Davis R. I. A.
Delbourgo Robert
Jarvis Peter D.
No associations
LandOfFree
Covariance, correlation and entanglement 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 Covariance, correlation and entanglement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Covariance, correlation and entanglement will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-625592