State reconstruction by on/off measurements

2009/03/31 by Alessia Allevi, A. Allevi, Alessandra Andreoni +15 · 41 citations
Computer Science · Mathematics · Physics and Astronomy · #Algorithm #Amplitude #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #Computer science #Field (mathematics) #Function (biology) #Homodyne detection #Mathematics #Optics #Phase (matter) #Photodetector #Physics #Quantum #Quantum Information and Cryptography #Quantum mechanics #Quantum state #Quantum tomography #State (computer science) #Tomography #Wigner distribution function #quant-ph

paper · pdf · doi:10.1103/physreva.80.022114

published in Physical Review A 80(2) (American Physical Society) · 6 pages, 4 figures, revised and enlarged version

arxiv created 2009/07/23 · openalex publication_date 2009/08/18 · arxiv updated 2015/05/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We demonstrate a state reconstruction technique which provides either the Wigner function or the density matrix of a field mode and requires only avalanche photodetectors, without any phase or amplitude discrimination power. It represents an alternative to quantum homodyne tomography of simpler implementation.

Citations

• Quantum Reconstruction of an Intense Polarization Squeezed Optical State
• Full Characterization of Gaussian Bipartite Entangled States by a Single Homodyne Detector
• Direct Probing of Quantum Phase Space by Photon Counting
• Density Operators and Quasiprobability Distributions
• Quantum cryptography using pulsed homodyne detection
• Direct measurement of the Wigner function by photon counting
• Counting near-infrared single-photons with 95% efficiency
• Direct probing of the Wigner function by time-multiplexed detection of photon statistics

Cited by

• Characteristics of displaced single photons attained via higher order factorial moments
• Self-calibrating tomography for angular Schmidt modes in spontaneous parametric down-conversion