Optical nonclassicality test based on third-order intensity correlations

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Title: Optical nonclassicality test based on third-order intensity correlations
Authors: Rigovacca, L
Kolthammer, WS
Franco, CD
Kim, MS
Item Type: Journal Article
Abstract: We develop a nonclassicality criterion for the interference of three delayed, but otherwise identical, light fields in a three-mode Bell interferometer. We do so by comparing the prediction of quantum mechanics with those of a classical framework in which independent sources emit electric fields with random phases. In particular, we evaluate third-order correlations among output intensities as a function of the delays, and show how the presence of a correlation revival for small delays cannot be explained by the classical model of light. The observation of a revival is thus a nonclassicality signature, which can be achieved only by sources with a photon-number statistics that is highly sub-Poissonian. Our analysis provides strong evidence for the nonclassicality of the experiment discussed in [Menssen et al., PRL, 118, 153603 (2017)], and shows how a collective "triad" phase affects the interference of any three or more light fields, irrespective of their quantum or classical character.
Issue Date: 9-Mar-2018
Date of Acceptance: 14-Feb-2018
ISSN: 1050-2947
Publisher: American Physical Society
Journal / Book Title: Physical Review A
Volume: 97
Copyright Statement: © 2018 American Physical Society
Sponsor/Funder: Commission of the European Communities
Engineering & Physical Science Research Council (E
The Royal Society
Samsung Electronics Co Ltd
Funder's Grant Number: 317232
Keywords: quant-ph
02 Physical Sciences
01 Mathematical Sciences
03 Chemical Sciences
General Physics
Notes: 11+1 pages, 4 figures
Article Number: ARTN 033809
Appears in Collections:Quantum Optics and Laser Science
Faculty of Natural Sciences

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