627 citations · 11.1k across the 229 of their papers we have counts for
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On the general problem of quantum phase estimation
G. M. D'Ariano, C. Macchiavello, M. F. Sacchi
The problem of estimating a generic phase-shift experienced by a quantum state is addressed for a generally degenerate phase shift operator. The optimal positive operator-valued me…
Adaptive Quantum Homodyne Tomography
Giacomo M. D'Ariano, Matteo G. A. Paris
An adaptive optimization technique to improve precision of quantum homodyne tomography is presented. The method is based on the existence of so-called null functions, which have ze…
Measuring quantum optical Hamiltonians
G. M. D'Ariano, L. Maccone
We show how recent state-reconstruction techniques can be used to determine the Hamiltonian of an optical device that evolves the quantum state of radiation. A simple experimental…
Quantum tomography of mesoscopic superpositions of radiation states
G. M. D'Ariano, C. Macchiavello, L. Maccone
We show the feasibility of a tomographic reconstruction of Schrödinger cat states generated according to the scheme proposed by S. Song, C.M. Caves and B. Yurke [Phys. Rev. A 41, 5…
Self-homodyne tomography of a twin-beam state
Giacomo M. D'Ariano, Michael Vasilyev, Prem Kumar
A self-homodyne detection scheme is proposed to perform two-mode tomography on a twin-beam state at the output of a nondegenerate optical parametric amplifier. This scheme has been…
Generation of phase-coherent states
Giacomo M. D'Ariano, Matteo G. A. Paris, Massimiliano F. Sacchi
An interaction scheme involving nonlinear media is suggested for the generation of phase-coherent states (PCS). The setup is based on parametric amplification of vacuum f…