Experimental test of the collapse time of a delocalized photon state

We investigate whether the collapse of the quantum state of a single photon split between two space-like separated places takes a nonvanishing time. We realize this by using a source of heralded single photons, then splitting the resulting single photon state and letting it propagate over distances...

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Autores principales: Garrisi, Francesco, Massara, Micol Previde, Zambianchi, Alberto, Galli, Matteo, Bajoni, Daniele, Rimini, Alberto, Nicrosini, Oreste
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6695446/
https://www.ncbi.nlm.nih.gov/pubmed/31417130
http://dx.doi.org/10.1038/s41598-019-48387-8
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author Garrisi, Francesco
Massara, Micol Previde
Zambianchi, Alberto
Galli, Matteo
Bajoni, Daniele
Rimini, Alberto
Nicrosini, Oreste
author_facet Garrisi, Francesco
Massara, Micol Previde
Zambianchi, Alberto
Galli, Matteo
Bajoni, Daniele
Rimini, Alberto
Nicrosini, Oreste
author_sort Garrisi, Francesco
collection PubMed
description We investigate whether the collapse of the quantum state of a single photon split between two space-like separated places takes a nonvanishing time. We realize this by using a source of heralded single photons, then splitting the resulting single photon state and letting it propagate over distances much larger than the experimental time resolution times the speed of light c. We find no additional delay within our accuracy and set a lower limit for the speed of collapse of the quantum state to 1550c.
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spelling pubmed-66954462019-08-19 Experimental test of the collapse time of a delocalized photon state Garrisi, Francesco Massara, Micol Previde Zambianchi, Alberto Galli, Matteo Bajoni, Daniele Rimini, Alberto Nicrosini, Oreste Sci Rep Article We investigate whether the collapse of the quantum state of a single photon split between two space-like separated places takes a nonvanishing time. We realize this by using a source of heralded single photons, then splitting the resulting single photon state and letting it propagate over distances much larger than the experimental time resolution times the speed of light c. We find no additional delay within our accuracy and set a lower limit for the speed of collapse of the quantum state to 1550c. Nature Publishing Group UK 2019-08-15 /pmc/articles/PMC6695446/ /pubmed/31417130 http://dx.doi.org/10.1038/s41598-019-48387-8 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Garrisi, Francesco
Massara, Micol Previde
Zambianchi, Alberto
Galli, Matteo
Bajoni, Daniele
Rimini, Alberto
Nicrosini, Oreste
Experimental test of the collapse time of a delocalized photon state
title Experimental test of the collapse time of a delocalized photon state
title_full Experimental test of the collapse time of a delocalized photon state
title_fullStr Experimental test of the collapse time of a delocalized photon state
title_full_unstemmed Experimental test of the collapse time of a delocalized photon state
title_short Experimental test of the collapse time of a delocalized photon state
title_sort experimental test of the collapse time of a delocalized photon state
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6695446/
https://www.ncbi.nlm.nih.gov/pubmed/31417130
http://dx.doi.org/10.1038/s41598-019-48387-8
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