493 citations · 12.2k across the 287 of their papers we have counts for
10 papers · 2 filters
Quantum estimation via minimum Kullback entropy principle
Stefano Olivares, Matteo G. A. Paris
We address quantum estimation in situations where one has at disposal data from the measurement of an incomplete set of observables and some a priori information on the state itsel…
Quantum criticality as a resource for quantum estimation
Paolo Zanardi, Matteo G A Paris, Lorenzo Campos Venuti
We address quantum critical systems as a resource in quantum estimation and derive the ultimate quantum limits to the precision of any estimator of the coupling parameters. In part…
Intensity correlations, entanglement properties and ghost imaging in multimode thermal-seeded parametric downconversion: Theory
Ivo P. Degiovanni, Maria Bondani, Emiliano Puddu +2
We address parametric-downconversion seeded by multimode pseudo-thermal fields. We show that this process may be used to generate multimode pairwise correlated states with entangle…
A measure of the non-Gaussian character of a quantum state
Marco G. Genoni, Matteo G. A. Paris, Konrad Banaszek
We address the issue of quantifying the non-Gaussian character of a bosonic quantum state and introduce a non-Gaussianity measure based on the Hilbert-Schmidt distance between the…
Generalized measurement of the non-normal two-boson operator
Matteo G A Paris, Giulio Landolfi, Giulio Soliani
We address the generalized measurement of the two-boson operator which, for , is not normal and cannot be detected by a joint measurement of quadr…
Entanglement oscillations in non-Markovian quantum channels
Sabrina Maniscalco, Stefano Olivares, Matteo G. A. Paris
We study the non-Markovian dynamics of a two-mode bosonic system interacting with two uncorrelated thermal bosonic reservoirs. We present the solution to the exact microscopic Mast…
Joint measurements on qubits and cloning of observables
Alessandro Ferraro, Matteo G A Paris
Cloning of observables, unlike standard cloning of states, aims at copying the information encoded in the statistics of a class of observables rather then on quantum states themsel…
Input-output relations for multiport ring cavities
Matteo G. A. Paris
Quantum input-output relations for a generic -port ring cavity are obtained by modeling the ring as a cascade of interlinked beam splitters. Cavity response to a beam imping…
Improving the entanglement transfer from continuous variable systems to localized qubits using non Gaussian states
Federico Casagrande, Alfredo Lulli, Matteo G. A. Paris
We investigate the entanglement transfer from a bipartite continuous-variable (CV) system to a pair of localized qubits assuming that each CV mode couples to one qubit via the off-…
Optimal quantum estimation of loss in bosonic channels
Alex Monras, Matteo G. A. Paris
We address the estimation of the loss parameter of a bosonic channel probed by Gaussian signals. We derive the ultimate quantum bound on precision and show that no improvement may…