627 citations · 11.1k across the 229 of their papers we have counts for
13 papers · 2 filters
Tomography of Quantum Operations
G. M. D'Ariano, P. Lo Presti
Quantum operations describe any state change allowed in quantum mechanics, including the evolution of an open system or the state change due to a measurement. In this letter we pre…
Continuous variable cloning via network of parametric gates
G. M. D'Ariano, F. De Martini, M. F. Sacchi
We propose an experimental scheme for the cloning machine of continuous quantum variables through a network of parametric amplifiers working as input-output four-port gates.
Approximate quantum cloning and the impossibility of superluminal information transfer
D. Bruss, G. M. D'Ariano, C. Macchiavello +1
We show that nonlocality of quantum mechanics cannot lead to superluminal transmission of information, even if most general local operations are allowed, as long as they are linear…
Homodyne characterization of active optical media
G. M. D'Ariano, M. G. A. Paris, M. F. Sacchi
An effective maximum likelihood method is suggested to characterize the absorption/amplification properties of active optical media through homodyne detection.
Quantum cloning optimal for joint measurements
G. M. D'Ariano, M. F. Sacchi
We show that universally covariant cloning is not optimal for achieving joint measurements of noncommuting observables with minimum added noise. For such a purpose a cloning transf…
Joint measurements via quantum cloning
G. M. D'Ariano, C. Macchiavello, M. F. Sacchi
We explore the possibility of achieving optimal joint measurements of noncommuting observables on a single quantum system by performing conventional measurements of commuting self…