Massively Parallel Coincidence Counting of High-Dimensional Entangled States

Abstract Entangled states of light are essential for quantum technologies and fundamental tests of physics. Current systems rely on entanglement in 2D degrees of freedom, e.g., polarization states. Increasing the dimensionality provides exponential speed-up of quantum computation, enhances the chann...

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Autores principales:	Matthew Reichert, Hugo Defienne, Jason W. Fleischer
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/25a22ac8737c4f89add891cb4a88dd4c
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spelling	oai:doaj.org-article:25a22ac8737c4f89add891cb4a88dd4c2021-12-02T15:09:12ZMassively Parallel Coincidence Counting of High-Dimensional Entangled States10.1038/s41598-018-26144-72045-2322https://doaj.org/article/25a22ac8737c4f89add891cb4a88dd4c2018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-26144-7https://doaj.org/toc/2045-2322Abstract Entangled states of light are essential for quantum technologies and fundamental tests of physics. Current systems rely on entanglement in 2D degrees of freedom, e.g., polarization states. Increasing the dimensionality provides exponential speed-up of quantum computation, enhances the channel capacity and security of quantum communication protocols, and enables quantum imaging; unfortunately, characterizing high-dimensional entanglement of even bipartite quantum states remains prohibitively time-consuming. Here, we develop and experimentally demonstrate a new theory of camera detection that leverages the massive parallelization inherent in an array of pixels. We show that a megapixel array, for example, can measure a joint Hilbert space of 1012 dimensions, with a speed-up of nearly four orders-of-magnitude over traditional methods. The technique uses standard geometry with existing technology, thus removing barriers of entry to quantum imaging experiments, generalizes readily to arbitrary numbers of entangled photons, and opens previously inaccessible regimes of high-dimensional quantum optics.Matthew ReichertHugo DefienneJason W. FleischerNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-7 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Matthew Reichert Hugo Defienne Jason W. Fleischer Massively Parallel Coincidence Counting of High-Dimensional Entangled States
description	Abstract Entangled states of light are essential for quantum technologies and fundamental tests of physics. Current systems rely on entanglement in 2D degrees of freedom, e.g., polarization states. Increasing the dimensionality provides exponential speed-up of quantum computation, enhances the channel capacity and security of quantum communication protocols, and enables quantum imaging; unfortunately, characterizing high-dimensional entanglement of even bipartite quantum states remains prohibitively time-consuming. Here, we develop and experimentally demonstrate a new theory of camera detection that leverages the massive parallelization inherent in an array of pixels. We show that a megapixel array, for example, can measure a joint Hilbert space of 1012 dimensions, with a speed-up of nearly four orders-of-magnitude over traditional methods. The technique uses standard geometry with existing technology, thus removing barriers of entry to quantum imaging experiments, generalizes readily to arbitrary numbers of entangled photons, and opens previously inaccessible regimes of high-dimensional quantum optics.
format	article
author	Matthew Reichert Hugo Defienne Jason W. Fleischer
author_facet	Matthew Reichert Hugo Defienne Jason W. Fleischer
author_sort	Matthew Reichert
title	Massively Parallel Coincidence Counting of High-Dimensional Entangled States
title_short	Massively Parallel Coincidence Counting of High-Dimensional Entangled States
title_full	Massively Parallel Coincidence Counting of High-Dimensional Entangled States
title_fullStr	Massively Parallel Coincidence Counting of High-Dimensional Entangled States
title_full_unstemmed	Massively Parallel Coincidence Counting of High-Dimensional Entangled States
title_sort	massively parallel coincidence counting of high-dimensional entangled states
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/25a22ac8737c4f89add891cb4a88dd4c
work_keys_str_mv	AT matthewreichert massivelyparallelcoincidencecountingofhighdimensionalentangledstates AT hugodefienne massivelyparallelcoincidencecountingofhighdimensionalentangledstates AT jasonwfleischer massivelyparallelcoincidencecountingofhighdimensionalentangledstates
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Massively Parallel Coincidence Counting of High-Dimensional Entangled States

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