403 citations · 1.2k across the 15 of their papers we have counts for
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Extremal covariant POVM's
Giulio Chiribella, Giacomo Mauro D'Ariano
We consider the convex set of positive operator valued measures (POVM) which are covariant under a finite dimensional unitary projective representation of a group. We derive a gene…
Efficient use of quantum resources for the transmission of a reference frame
G. Chiribella, G. M. D'Ariano, P. Perinotti +1
We propose a covariant protocol for transmitting reference frames encoded on spins, achieving sensitivity without the need of a pre-established reference frame and wit…
Covariant quantum measurements which maximize the likelihood
Giulio Chiribella, Giacomo Mauro D'Ariano, Paolo Perinotti +1
We derive the class of covariant measurements which are optimal according to the maximum likelihood criterion. The optimization problem is fully resolved in the case of pure input…