Revised geometric measure of entanglement
نویسندگان
چکیده
منابع مشابه
Revised Geometric Measure of Entanglement
We revise the geometric measure of entanglement (GME). The revised geometric measure of entanglement (RGME) is an entanglement monotone. Some useful inequalities about RGME are deduced. As the RGME’s application, the twoparameter class of states in 2⊗ n quantum system, the two particles high dimensional maximally entangled mixed state, the isotropic state including n-particle d-level case and t...
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We have calculated the analytic expression of GME for arbitrary superposition of two N -qubitW states and two GHZ states. We have also derived the GME for a generic class of states, which is not permutation invariant and of M copies of a pure state. A nice comparison between GHZ and W states w.r.t. GME has been drawn.
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The geometric measure of quantum 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 the geometric measure by means of a system of equations. The entanglement eigenvalue for a mixed state is introduced. And we show that, for...
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ژورنال
عنوان ژورنال: Journal of Physics A: Mathematical and Theoretical
سال: 2007
ISSN: 1751-8113,1751-8121
DOI: 10.1088/1751-8113/40/13/014