Optical homodyne detection in view of the joint probability distribution

2010/07/09 by Toru Kawakubo, Katsuji Yamamoto · 4 citations
Computer Science · Engineering · Mathematics · Physics and Astronomy · #Computer science #Direct-conversion receiver #Engineering #Homodyne detection #Interference (communication) #Joint (building) #Joint probability distribution #Mathematics #Optics #Physics #Probability distribution #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum optics and atomic interactions #Statistical physics #Statistics #Telecommunications #Transformation (genetics) #quant-ph

paper · pdf · open access · doi:10.1103/physreva.82.032102

published in Physical Review A 82(3) (American Physical Society) · 8 pages, 2 figures; REVTeX 4.1

arxiv created 2010/07/09 · openalex publication_date 2010/09/03 · arxiv updated 2010/09/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Optical homodyne detection is examined in view of the joint probability distribution. The usual view is that the relative phase between independent laser fields is localized by photon-number measurements in interference experiments such as homodyne detection. This is why operationally coherent states for laser fields are used in the description of homodyne detection and optical quantum-state tomography. Here, we elucidate these situations by considering the joint probability distribution and the invariance of homodyne detection under the phase transformation of optical fields.

Citations

• Optical coherence: A convenient fiction
• Defending continuous variable teleportation: why a laser is a clock, not a quantum channel
• Photon-number superselection and the entangled coherent-state representation
• Operational formulation of homodyne detection
• Quantum Bayesian methods and subsequent measurements
• Reference frames, superselection rules, and quantum information
• Coherent and Incoherent States of the Radiation Field