Geometric measure of entanglement of multipartite mixed states

Details Geometric measure of entanglement of multipartite mixed states Geometric measure of entanglement of multipartite mixed states

2012-04-19

arxiv.org/abs/1204.4317v1

Physics

Quantum Physics

12 pages

Scientific paper

The geometric measure of entanglement of a pure state, defined by its distance to the set of pure separable states, is extended to multipartite mixed states. We characterize the nearest disentangled mixed state to a given mixed state with respect to this measure by a system of equations. The entanglement eigenvalue for a mixed state is introduced. For a given mixed state, we show that its nearest disentangled mixed state is associated with its entanglement eigenvalue.

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