Phase control of a path-entangled photon state by a deformable membrane mirror
Authors: Bonato C., Bonora S., Chiuri A., Mataloni P., Milani G., Vallone G., Villoresi P.
Autors Affiliation: CNR-INFM LUXOR, Department of Information Engineering, University of Padova, Padova, Italy; Huygens Laboratory, Leiden University, P.O. Box 9504, 2300 RA Leiden, the Netherlands; Dipartimento di Fisica, Università Sapienza di Roma, Piazzale Aldo Moro 5, Roma 00185, Italy; CNR – Istituto Nazionale di Ottica Applicata, L.go E. Fermi 6, 50125 Florence, Italy; Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi”, Via Panisperna 89/A, Compendio del Viminale, Roma 00184, Italy
Abstract: We demonstrate the potentialities of a deformable mirror for closed-loop control of a two-photon path-entangled state subject to phase fluctuations. A custom-made membrane mirror is used to set a relative phase shift between the arms of an interferometric apparatus. The control algorithm estimates the phase of the quantum state by measurements of the coincidence events at the output ports of the interferometer and uses the measurement results to provide a feedback signal to the deformable mirror. Stabilization of the coincidence rate to within 1.5 standard deviation of the Poissonian noise is demonstrated over 2000 s. (C) 2010 Optical Society of America
Journal/Review: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B: OPTICAL PHYSICS
Volume: 27 (6) Pages from: A175 to: A180
More Information: This work was partially supported by Strategic-Research Project QUANTUMFUTURE of the University of Padova.DOI: 10.1364/JOSAB.27.00A175Citations: 6data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2020-02-23References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here