Optimal single-qubit tomography: Realization of locally optimal measurements on a quantum computer
Bacui Li, Lorcán O. Conlon, Ping Koy Lam, Syed M. Assad · Physical Review A · 2023
The authors map qubit tomography to a quantum multiparameter estimation problem and find the optimal single-qubit measurements. Using a quantum computing demonstration they show that the optimal separable measurement bound can be saturated.