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arXiv · 0810.1839

Global entanglement and coherent states in an N-partite system

P. Dömötör·M. G. Benedict
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Abstract

We consider a quantum system consisting of N parts, each of which is a "quKit" described by a K dimensional Hilbert space. We prove that in the symmetric subspace, S, a pure state is not globally entangled, if and only if it is a coherent state. It is also shown that in the orthogonal complement all states are globally entangled.

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P. Dömötör, M. G. Benedict. 2008-10-10. Global entanglement and coherent states in an N-partite system. https://doi.org/10.1140/epjd%2Fe2009-00106-9

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