2015/07/31 by Hisashi Ogawa, Hideaki Ohdan, Kazunori Miyata +6 · 46 citations
Computer Science · Mathematics · Physics and Astronomy · #Homodyne detection #Mathematics #Mechanical and Optical Resonators #Optics #Photon #Photon counting #Physics #Quadrature (astronomy) #Quantum #Quantum Information and Cryptography #Quantum mechanics #Quantum optics and atomic interactions #Realization (probability) #Statistics #Wave packet #quant-ph
paper · pdf · doi:10.1103/physrevlett.116.233602
published in Physical Review Letters 116(23), 233602 (American Physical Society) · 5 pages, 4 figures
arxiv created 2016/03/23 · openalex publication_date 2016/06/08 · arxiv updated 2016/06/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
Real-time controls based on quantum measurements are powerful tools for various quantum protocols. However, their experimental realization has been limited by mode mismatch between the temporal mode of quadrature measurement and that heralded by photon detection. Here, we demonstrate real-time quadrature measurement of a single-photon wave packet induced by photon detection by utilizing continuous temporal-mode matching between homodyne detection and an exponentially rising temporal mode. Single photons in exponentially rising modes are also expected to be useful resources for interactions with other quantum systems.