Journal
PHYSICAL REVIEW A
Volume 73, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.73.044302
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The main goal of this paper is to provide a connection between the generalized robustness of entanglement (R-g) and the geometric measure of entanglement (E-GME). First, we show that the generalized robustness is always higher than or equal to the geometric measure. Then we find a tighter lower bound to R-g(rho) based only on the purity of rho and its maximal overlap to a separable state. As we will see it is also possible to express this lower bound in terms of E-GME.
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