[Les triplets de photons : un défi pour l'optique non linéaire et l'optique quantique]
Cet article est consacré à la generation et aux corrélations quantiques des triplets de photons. Il s'agit de la création de trois photons fortement corrélés produits à partir de la scission d'un seul photon par un processus non linéaire paramétrique du troisième ordre à l'accord de phase. Ces triplets constituent un état Greenberger–Horne–Zeilinger de la lumière ; ils sont intéressants non seulement d'un point de vue fondamental mais aussi pour de nouveaux protocoles de cryptographie quantique. Nous donnons ici la description à la fois classique et quantique de la génération de triplets de photons, nous décrivons la première démonstration expérimentale d'une telle génération, et nous calculons la fonction de Wigner des états quantiques à 3 photons.
This article is devoted to the generation and the quantum correlations of triple photons, which correspond to the creation of three highly correlated photons from the splitting of a single photon by a phase-matched third-order parametric nonlinear process. These triples constitute a Greenberger–Horne–Zeilinger state of light and are interesting from a fundamental point of view but also for new schemes of quantum cryptography. We give here the classical and quantum descriptions of triple photon generation, we report on the first experimental demonstration of such a generation, and we calculate the Wigner function of three-photon quantum states of light.
Mot clés : Optique non linéaire cubique, Optique quantique, Cristaux non linéaires, États non classiques de la lumière, GHZ, Conversion de fréquence paramétrique, Corrélation quantiques, Fluorescence paramétrique
@article{CRPHYS_2007__8_2_206_0,
author = {Kamel Bencheikh and Fabien Gravier and Julien Douady and Ariel Levenson and Beno{\^\i}t Boulanger},
title = {Triple photons: a challenge in nonlinear and quantum optics},
journal = {Comptes Rendus. Physique},
pages = {206--220},
publisher = {Elsevier},
volume = {8},
number = {2},
year = {2007},
doi = {10.1016/j.crhy.2006.07.014},
language = {en},
}
TY - JOUR AU - Kamel Bencheikh AU - Fabien Gravier AU - Julien Douady AU - Ariel Levenson AU - Benoît Boulanger TI - Triple photons: a challenge in nonlinear and quantum optics JO - Comptes Rendus. Physique PY - 2007 SP - 206 EP - 220 VL - 8 IS - 2 PB - Elsevier DO - 10.1016/j.crhy.2006.07.014 LA - en ID - CRPHYS_2007__8_2_206_0 ER -
%0 Journal Article %A Kamel Bencheikh %A Fabien Gravier %A Julien Douady %A Ariel Levenson %A Benoît Boulanger %T Triple photons: a challenge in nonlinear and quantum optics %J Comptes Rendus. Physique %D 2007 %P 206-220 %V 8 %N 2 %I Elsevier %R 10.1016/j.crhy.2006.07.014 %G en %F CRPHYS_2007__8_2_206_0
Kamel Bencheikh; Fabien Gravier; Julien Douady; Ariel Levenson; Benoît Boulanger. Triple photons: a challenge in nonlinear and quantum optics. Comptes Rendus. Physique, Volume 8 (2007) no. 2, pp. 206-220. doi : 10.1016/j.crhy.2006.07.014. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2006.07.014/
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