627 citations · 11.1k across the 229 of their papers we have counts for
8 papers · 2 filters
Optimal covariant quantum networks
G. Chiribella, G. M. D'Ariano, P. Perinotti
A sequential network of quantum operations is efficiently described by its quantum comb, a non-negative operator with suitable normalization constraints. Here we analyze the case o…
The Quantum No-Stretching: A geometrical interpretation of the no-cloning theorem
Giacomo Mauro D'Ariano, Paolo Perinotti
We consider the ideal situation in which a space rotation is transferred from a quantum spin j to a quantum spin l different from j. Quantum-information theoretical considerations…
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…
Adaptive Bayesian and frequentist data processing for quantum tomography
G. M. D'Ariano, D. F. Magnani, P. Perinotti
The outcome statistics of an informationally complete quantum measurement for a system in a given state can be used to evaluate the ensemble expectation of any linear operator in t…
Optimal quantum tomography for states, measurements, and transformations
A. Bisio, G. Chiribella, G. M. D'Ariano +2
We present the first complete optimization of quantum tomography, for states, POVMs, and various classes of transformations, for arbitrary prior ensemble and arbitrary representati…
Memory effects in quantum channel discrimination
Giulio Chiribella, Giacomo M. D'Ariano, Paolo Perinotti
We consider quantum-memory assisted protocols for discriminating quantum channels. We show that for optimal discrimination of memory channels, memory assisted protocols are needed.…