2.4k citations · 9.3k across the 64 of their papers we have counts for
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quant-ph2011★ 157 cited
Extremal properties of the variance and the quantum Fisher information
Geza Toth, Denes Petz
We show that the variance is its own concave roof. For rank-2 density matrices and operators with zero diagonal elements in the eigenbasis of the density matrix, we prove analytica…
quant-ph2011★ 105 cited
Spin squeezing inequalities for arbitrary spin
Giuseppe Vitagliano, Philipp Hyllus, Inigo L. Egusquiza +1
We determine the complete set of generalized spin squeezing inequalities, given in terms of the collective angular momentum components, for particles with an arbitrary spin. They c…
math.CO2011★ 1 cited
Monotone drawings of planar graphs
Janos Pach, Geza Toth
Let G be a graph drawn in the plane so that its edges are represented by x-monotone curves, any pair of which cross an even number of times. We show that G can be redrawn in such a…