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|Title:||Optical nonclassicality test based on third-order intensity correlations||Authors:||Rigovacca, L.
Kolthammer, W. S.
Kim, M. S.
Di Franco, Carlo
|Keywords:||Third-order Intensity Correlations
|Issue Date:||2018||Source:||Rigovacca, L., Kolthammer, W. S., Di Franco, C., & Kim, M. S. (2018). Optical nonclassicality test based on third-order intensity correlations. Physical Review A, 97(3), 033809-.||Series/Report no.:||Physical Review A||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 by Menssen et al. [Phys. Rev. Lett. 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.||URI:||https://hdl.handle.net/10356/85160
|ISSN:||2469-9926||DOI:||10.1103/PhysRevA.97.033809||Rights:||© 2018 American Physical Society. This paper was published in Physical Review A and is made available as an electronic reprint (preprint) with permission of American Physical Society. The published version is available at: [http://dx.doi.org/10.1103/PhysRevA.97.033809]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||SPMS Journal Articles|
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