10.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Istituto Nazionale di Fisica Nucleare, Sezione di PaviaIT2.8k papers
- European Organization for Nuclear ResearchCH2.1k papers
- The Ohio State UniversityUS2k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT2k papers
- National and Kapodistrian University of AthensGR2k papers
- Centre National de la Recherche ScientifiqueFR2k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.9k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT1.9k papers
- Sapienza University of RomeIT1.9k papers
- University of PisaIT1.9k papers
- University of BolognaIT1.9k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT1.8k papers
11 papers · 2 filters
Optical Bell Measurement by Fock Filtering
MGA Paris, M Plenio, D Jonathan +2
We describe a nonlinear interferometric setup to perform a complete optical Bell measurement, i.e. to unambigously discriminate the four polarization entangled EPR-Bell photon pair…
Universal homodyne tomography with a single local oscillator
G. Mauro D'Ariano, Massimiliano F. Sacchi, Prem Kumar
We propose a general method for measuring an arbitrary observable of a multimode electromagnetic field using homodyne detection with a single local oscillator. In this method the l…
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…
Universal teleportation with a twist
Samuel L. Braunstein, Giacomo M. D'Ariano, G. J. Milburn +1
We give a transfer theorem for teleportation based on twisting the entanglement measurement. This allows one to say what local unitary operation must be performed to complete the t…
Tomographic test of Bell's inequality
G. M. D'Ariano, L. Maccone, M. F. Sacchi +1
We present a homodyne detection scheme to verify Bell's inequality on correlated optical beams at the output of a nondegenerate parametric amplifier. Our approach is based on tomog…
On the correspondence between classical and quantum measurements on a bosonic field
G. M. D'Ariano, M. F. Sacchi, H. P. Yuen
We study the correspondence between classical and quantum measurements on a harmonic oscillator that describes a one-mode bosonic field. We connect the quantum measurement of an ob…
State preparation by photon filtering
G. M. D'Ariano, L. Maccone, M. G. A. Paris +1
We propose a setup capable of generating Fock states of a single mode radiation field. The scheme is based on coupling the signal field to a ring cavity through cross-Kerr phase mo…
Quantum tomography of the GHZ state
G. M. D'Ariano, M. Rubin, M. F. Sacchi +1
We present a method of generation of the Greenberger-Horne-Zeilinger state involving type II and type I parametric downconversion, and triggering photodetectors. The state generate…
Quantum entanglement and classical communication through a depolarising channel
D. Bruss, L. Faoro, C. Macchiavello +1
We analyse the role of entanglement for transmission of classical information through a memoryless depolarising channel. Using the isotropic character of this channel we prove anal…
Tomographic measurement of nonclassical radiation states
G. M. D'Ariano, M. F. Sacchi, P. Kumar
We propose to experimentally test the nonclassicality of quantum states through homodyne tomography. For single-mode states we check violations of inequalities involving the photon…