Toward quantum frequency combs: Boosting the generation of highly nonclassical light states by cavity-enhanced parametric down-conversion at high repetition rates
Year: 2008
Authors: Zavatta A., Parigi V., Bellini M.
Autors Affiliation: CNR – Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy;
Department of Physics, University of Florence, I-50019 Sesto Fiorentino, Florence, Italy;
LENS, Via Nello Carrara 1, 50019 Sesto Fiorentino, Florence, Italy
Abstract: We demonstrate the generation of multiphoton quantum states of light by cavity-enhanced parametric downconversion in the high-repetition-rate pulsed regime. An external enhancement cavity resonant with the spectral comb of modes of a mode-locked pump laser provides a coherent buildup of the pump intensity and greatly enhances the parametric gain without sacrificing its high repetition rate and comb structure. We probe the parametric gain enhancement by the conditional generation and tomographic analysis of two-photon Fock states. Besides its potential impact for efficiently generating highly nonclassical or entangled multiphoton states in many existing experimental setups, this scheme opens exciting perspectives toward the combination of quantum and comb technologies for enhanced measurements and advanced quantum computation protocols.
Journal/Review: PHYSICAL REVIEW A
Volume: 78 (3) Pages from: 033809-1 to: 033809-4
More Information: This work was partially supported by Ente Cassa di Risparmio di Firenze and by CNR-RSTL Projects.KeyWords: Computational linguistics; Computer networks; Pumps; Quantum computers, High repetition rates; Parametric down-conversion; Parametric gains, Pumping (laser)DOI: 10.1103/PhysRevA.78.033809Citations: 20data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-09-29References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here