Multipartite entanglement measure for all discrete systems
Abstract
Via a multidimensional complementarity relation we derive a novel operational entanglement measure for any discrete quantum system, i.e. for any multidimensional and multipartite system. This new measure admits a separation into different classes of entanglement obtained by using a flip operator 2,3,...,n times, defining a m-flip concurrence. For mixed states bounds on this m-flip concurrence can be obtained. Moreover, the information content of a n partite multidimensional system admits an intuitive interpretation. Explicitly, the three qubits system is analyzed and the physical difference in entanglement of the W-state, the GHZ state or the bi-separable state is revealed.
Cite
@article{arxiv.0712.0346,
title = {Multipartite entanglement measure for all discrete systems},
author = {Beatrix C. Hiesmayr and Marcus Huber},
journal= {arXiv preprint arXiv:0712.0346},
year = {2009}
}
Comments
Extended version including explicitly the 3 qubit case, 7 pages, 3 figures