Magic Three-Qubit Veldkamp Line and Veldkamp Space of the Doily

Metod Saniga, Zsolt Szabó

A magic three-qubit Veldkamp line of $W(5,2)$, i.\,e. the line comprising a hyperbolic quadric ${\mathcal{Q}}^{+}(5,2)$, an elliptic quadric ${\mathcal{Q}}^{-}(5,2)$ and a quadratic cone $…