493 citations · 12.2k across the 287 of their papers we have counts for
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Optical qubit by conditional interferometry
Matteo G A Paris
We suggest a method to prepare any chosen superposition a0 |0> + a1 |1> of the vacuum and one-photon states. The method is based on a conditional double-interferometer fed by an on…
Maximum-likelihood estimation of the density matrix
K. Banaszek, G. M. D'Ariano, M. G. A. Paris +1
We present a universal technique for quantum state estimation based on the maximum-likelihood method. This approach provides a positive definite estimate for the density matrix fro…
Generation and Measurement of Nonclassical States by Quantum Fock Filter
G. M. D'Ariano, L. Maccone, M. G. A. Paris +1
We study a novel optical setup which is able to select a specific Fock component from a generic input state. The device allows to synthesize number states and superpositions of few…
On the parametric approximation in quantum optics
G. M. D'Ariano, M. G. A. Paris, M. F. Sacchi
We perform the exact numerical diagonalization of the Hamiltonians that describe both degenerate and nondegenerate parametric amplifiers, by exploiting the conservation laws pertai…