Revised Geometric Measure of Entanglement

Details Revised Geometric Measure of Entanglement Revised Geometric Measure of Entanglement

2007-01-15

arxiv.org/abs/quant-ph/0701099v2

Physics

Quantum Physics

35 pages, 8 figures

Scientific paper

We present an revised geometric measure of entanglement (RGME). The revised version is an entanglement monotone. Some useful inequalities about RGME are deduced. For exemplification, we give the formulas of RGME for the two-parameter class of states in $2 \otimes n$ quantum system, the two particles high dimensional maximally entangled mixed state, the isotropic state including $n$-particle $d$-level case and two multipartite bound entangled states. The result shows there is a relation $\widetilde{E}_{\sin^2} \leq E_{re}$, which indicates that the RGME is an appropriate measure of entanglement.

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