Counterfactual ghost imaging

Abstract We give a protocol for ghost imaging in a way that is always counterfactual—while imaging an object, no light interacts with that object. This extends the idea of counterfactuality beyond communication, showing how this interesting phenomenon can be leveraged for metrology. Given, in the in...

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Autores principales:	Jonte R. Hance, John Rarity
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95
Acceso en línea:	https://doaj.org/article/f26a15c1e7a04971b031dedbb59a5122
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spelling	oai:doaj.org-article:f26a15c1e7a04971b031dedbb59a51222021-12-02T15:02:24ZCounterfactual ghost imaging10.1038/s41534-021-00411-42056-6387https://doaj.org/article/f26a15c1e7a04971b031dedbb59a51222021-06-01T00:00:00Zhttps://doi.org/10.1038/s41534-021-00411-4https://doaj.org/toc/2056-6387Abstract We give a protocol for ghost imaging in a way that is always counterfactual—while imaging an object, no light interacts with that object. This extends the idea of counterfactuality beyond communication, showing how this interesting phenomenon can be leveraged for metrology. Given, in the infinite limit, no photons ever go to the imaged object, it presents a method of imaging even the most light-sensitive of objects without damaging them. Even when not in the infinite limit, it still provides a many-fold improvement in visibility and signal-to-noise ratio over previous protocols, with over an order of magnitude reduction in absorbed intensity.Jonte R. HanceJohn RarityNature PortfolioarticlePhysicsQC1-999Electronic computers. Computer scienceQA75.5-76.95ENnpj Quantum Information, Vol 7, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95
spellingShingle	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95 Jonte R. Hance John Rarity Counterfactual ghost imaging
description	Abstract We give a protocol for ghost imaging in a way that is always counterfactual—while imaging an object, no light interacts with that object. This extends the idea of counterfactuality beyond communication, showing how this interesting phenomenon can be leveraged for metrology. Given, in the infinite limit, no photons ever go to the imaged object, it presents a method of imaging even the most light-sensitive of objects without damaging them. Even when not in the infinite limit, it still provides a many-fold improvement in visibility and signal-to-noise ratio over previous protocols, with over an order of magnitude reduction in absorbed intensity.
format	article
author	Jonte R. Hance John Rarity
author_facet	Jonte R. Hance John Rarity
author_sort	Jonte R. Hance
title	Counterfactual ghost imaging
title_short	Counterfactual ghost imaging
title_full	Counterfactual ghost imaging
title_fullStr	Counterfactual ghost imaging
title_full_unstemmed	Counterfactual ghost imaging
title_sort	counterfactual ghost imaging
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/f26a15c1e7a04971b031dedbb59a5122
work_keys_str_mv	AT jonterhance counterfactualghostimaging AT johnrarity counterfactualghostimaging
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Counterfactual ghost imaging

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