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
9 papers · 2 filters
Incompatible and contradictory retrodictions in the history approach to quantum mechanics
Giulio Peruzzi, Alberto Rimini
We illustrate two simple spin examples which show that in the consistent histories approach to quantum mechanics one can retrodict with certainty incompatible or contradictory prop…
The Quantum Tomographic Roulette Wheel
G. M. D'Ariano, M. G. A. Paris
Random-phase homodyne tomography of the field intensity is a concrete example of the Quantum Roulette of Helstrom. In this paper we give the explicit POM of such measurement and co…
Optical von Neumann measurement
G. M. D'Ariano, M. F. Sacchi
We present an optical scheme that realizes the standard von Neumann measurement model, providing an indirect measurement of a quadrature of the field with controllable Gaussian sta…
Trace forms for the generalized Wigner functions
G. M. D'Ariano, M. F. Sacchi
We derive simple formulas connecting the generalized Wigner functions for -ordering with the density matrix, and vice-versa. These formulas proved very useful for quantum mechan…
Added noise in homodyne measurement of field-observables
Giacomo M. D'Ariano, Matteo G. A. Paris
Homodyne tomography provides a way for measuring generic field-operators. Here we analyze the determination of the most relevant quantities: intensity, field, amplitude and phase.…
Equivalence between squeezed-state and twin-beam communication channels
Giacomo Mauro D'Ariano, Massimiliano Sacchi
We show the equivalence between two different communication schemes that employ a couple of modes of the electromagnetic field. One scheme uses unconventional heterodyne detection,…
Systematic and statistical errors in homodyne measurements of the density matrix
G. M. D'Ariano, N. Sterpi, C. Macchiavello
We study both systematic and statistical errors in radiation density matrix measurements. First we estimate the minimum number of scanning phases needed to reduce systematic errors…
Homodyning as universal detection
G. M. D'Ariano
Homodyne tomography - i. e. homodyning while scanning the local oscillator phase - is now a well assessed method for ``measuring'' the quantum state. In this paper I will show how…
Comment on "Loss-error compensation in quantum-state measurements"
G. M. D'Ariano, C. Macchiavello
In the two papers [T. Kiss, U. Herzog, and U. Leonhardt, Phys. Rev. A 52, 2433 (1995); U. Herzog, Phys. Rev. A 53, 1245 (1996)] with titles similar to the one given above, the auth…