2 problems

Optimality conjecture for the family of positive maps $\Phi[\alpha]$
Optimality conjecture for $\Phi[\alpha]$ . For $\frac{\pi}{3}\leq\alpha\leq\frac{5}{3\pi}$ , the positive maps $\Phi[\alpha]$ are optimal.
openentanglement-witnesses positive-maps quantum-information
0 responses
03
The structural physical approximation conjecture for optimal entanglement witnesses
Let $W$ be a normalized entanglement witness with ${\rm Tr}\,W=1$ , and define … The structural physical approximation (SPA) of $W$ is an operator $\widetilde{W}(p)$ satisfying…
openentanglement-witnesses positive-maps quantum-information
0 responses
06

Optimality conjecture for the family of positive maps Φ[α]\Phi[\alpha]Φ[α]