1995/12/01 by Giacomo Mauro D’Ariano, G. M. D'Ariano, M. F. Sacchi +1 · 4 citations
Computer Science · Physics and Astronomy · #Laser-Matter Interactions and Applications #Photorefractive and Nonlinear Optics #Quantum Information and Cryptography #quant-ph
paper · pdf · doi:10.1103/physreva.52.r4309
published as Phys. Rev. A 52, R4309 (1995). · 3 pages, 1 figure
openalex publication_date 1995/12/01 · arxiv created 2001/09/27 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We present an experimental scheme that achieves ideal phase detection on a two-mode field. The two modes a and b are the signal and image band modes of a heterodyne detector, with the field approaching an eigenstate of the photocurrent Z^=a+b^\mathrm\ifmmode^∘\else\textdegree\fi. The field is obtained by means of a high-gain phase-insensitive amplifier followed by a high-transmissivity beam splitter with a strong local oscillator at the frequency of one of the two modes.