72 citations · 112 across the 3 of their papers we have counts for
6 papers · 1 filter
Realization schemes for quantum instruments in finite dimensions
Giulio Chiribella, Giacomo Mauro D'Ariano, Paolo Perinotti
We present a general dilation scheme for quantum instruments with continuous outcome space in finite dimensions, in terms of an indirect POVM measurement performed on a finite dime…
Probabilistic theories: what is special about Quantum Mechanics?
Giacomo Mauro D'Ariano
Quantum Mechanics (QM) is a very special probabilistic theory, yet we don't know which operational principles make it so. All axiomatization attempts suffer at least one postulate…
Optimal cloning of unitary transformations
G. Chiribella, G. M. D'Ariano, P. Perinotti
After proving a general no-cloning theorem for black boxes, we derive the optimal universal cloning of unitary transformations, from one to two copies. The optimal cloner is realiz…
Applications of the group SU(1,1) for quantum computation and tomography
G. Chiribella, G. M. D'Ariano, P. Perinotti
This paper collects miscellaneous results about the group SU(1,1) that are helpful in applications in quantum optics. Moreover, we derive two new results, the first is about the ap…
Optimal data processing for quantum measurements
Giacomo Mauro D'Ariano, Paolo Perinotti
We consider the general measurement scenario in which the ensemble average of an operator is determined via suitable data-processing of the outcomes of a quantum measurement descri…
Superbroadcasting and classical information
G. Chiribella, G. M. D'Ariano, C. Macchiavello +2
We address the problem of broadcasting N copies of a generic qubit state to M>N copies by estimating its direction and preparing a suitable output state according to the outcome of…