493 citations · 12.2k across the 287 of their papers we have counts for
12 papers · 2 filters
Information/disturbance trade-off in single and sequential measurements on a qudit signal
Marco G. Genoni, Matteo G. A. Paris
We address the trade-off between information gain and state disturbance in measurement performed on qudit systems and devise a class of optimal measurement schemes that saturate th…
Sub-shot-noise photon-number correlation in mesoscopic twin-beam of light
Maria Bondani, Alessia Allevi, Guido Zambra +2
We demonstrate sub-shot-noise photon-number correlations in a (temporal) multimode mesoscopic ( detected photons) twin-beam produced by ps-pulsed spontaneous non-degener…
Multiphoton communication in lossy channels with photon-number entangled states
Vladyslav C. Usenko, Matteo G. A. Paris
We address binary and quaternary communication channels based on correlated multiphoton two-mode states of radiation in the presence of losses. The protocol are based on photon num…
Optimal cloning of coherent states by linear optics
Stefano Olivares, Matteo G. A. Paris, Ulrik L. Andersen
We describe an optical scheme for optimal Gaussian n to m cloning of coherent states. The scheme, which generalizes a recently demonstrated scheme for 1 to 2 cloning, involves only…
Improving information/disturbance and estimation/distortion trade-offs with non universal protocols
Stefano Olivares, Matteo G. A. Paris
We analyze in details a conditional measurement scheme based on linear optical components, feed-forward loop and homodyne detection. The scheme may be used to achieve two different…
De-Gaussification by inconclusive photon subtraction
Stefano Olivares, Matteo G. A. Paris
We address conditional de-Gaussification of continuous variable states by inconclusive photon subtraction (IPS) and review in details its application to bipartite twin-beam state o…
Joint multipartite photon statistics by on/off detection
G. Brida, M. Genovese, M. G. A. Paris +1
We demonstrate a method to reconstruct the joint photon statistics of two or more modes of radiation using on/off photodetection performed at different quantum efficiencies. The tw…
On the reconstruction of diagonal elements of density matrix of quantum optical states by on/off detectors
G. Brida, M. Genovese, M. Gramegna +3
We discuss a scheme for reconstructing experimentally the diagonal elements of the density matrix of quantum optical states. Applications to PDC heralded photons, multi-thermal and…
Engineering multiphoton states for linear optics computation
Paolo Aniello, Cosmo Lupo, Mario Napolitano +1
Transformations achievable by linear optical components allow to generate the whole unitary group only when restricted to the one-photon subspace of a multimode Fock space. In this…
Transmittivity measurements by means of squeezed vacuum light
V. D'Auria, C. de Lisio, A. Porzio +2
A method for measuring the transmittivity of optical samples by using squeezed--vacuum radiation is illustrated. A squeezed vacuum field generated by a below--threshold optical par…
Cloning of Gaussian states by linear optics
Stefano Olivares, Matteo G. A. Paris, Ulrik L. Andersen
We analyze in details a scheme for cloning of Gaussian states based on linear optical components and homodyne detection recently demonstrated by U. L. Andersen et al. [PRL 94 24050…
Information/disturbance trade-off in continuous variable Gaussian systems
Marco G. Genoni, Matteo G. A. Paris
We address the information/disturbance trade-off for state-measurements on continuous variable Gaussian systems and suggest minimal schemes for implementations. In our schemes, the…