A simple entanglement measure for multipartite pure states is formulated based on the partial entropy of a series of reduced density matrices. Use of the proposed new measure to distinguish disentangled, partially entangled, and maximally entangled multipartite pure states is illustrated. © 2004 Springer Science+Business Media, Inc.
Publication Source (Journal or Book title)
International Journal of Theoretical Physics
Pan, F., Liu, D., Lu, G., & Draayer, J. (2004). Simple entanglement measure for multipartite pure states. International Journal of Theoretical Physics, 43 (5), 1241-1247. https://doi.org/10.1023/B:IJTP.0000048612.08077.8e