Direct measure of genuine tripartite entanglement independent from bipartite constructions |
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| Authors: | Mustapha Ziane Morad El Baz |
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| Affiliation: | 1.équipe de science de la Matière et du Rayonnement, Département de Physique, Faculté des sciences,Université Mohammed V,Agdal, Rabat,Morocco |
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| Abstract: | A new and direct measure (without bipartite measures) of genuine entanglement in tripartite systems based on the volume of the negative part of the Wigner function is proposed. We analyze comparatively this quantity and the different types of entanglement present in two major classes (GHZ and W classes) formed in the coherent state basis. |
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