eCite Digital Repository
Covariance, correlation and entanglement
Citation
Davis, RIA and Delbourgo, R and Jarvis, PD, Covariance, correlation and entanglement, Journal of Physics A-Mathematical and General, 33, (9) pp. 1895-1914. ISSN 0305-4470 (2000) [Refereed Article]
DOI: doi:10.1088/0305-4470/33/9/312
Abstract
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 upon 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 spin states is described.
Item Details
Item Type: | Refereed Article |
---|---|
Research Division: | Physical Sciences |
Research Group: | Other Physical Sciences |
Research Field: | Physical Sciences not elsewhere classified |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding Knowledge |
Objective Field: | Expanding Knowledge in the Physical Sciences |
UTAS Author: | Davis, RIA (Mr Richard Ian Arthur Davis) |
UTAS Author: | Delbourgo, R (Professor Robert Delbourgo) |
UTAS Author: | Jarvis, PD (Dr Peter Jarvis) |
ID Code: | 18570 |
Year Published: | 2000 |
Web of Science® Times Cited: | 11 |
Deposited By: | Physics |
Deposited On: | 2000-08-01 |
Last Modified: | 2001-05-07 |
Downloads: | 0 |
Repository Staff Only: item control page