Arbitrarily Loss-Tolerant Einstein-Podolsky-Rosen Steering Allowing a Demonstration over 1 km of Optical Fiber with No Detection Loophole

Demonstrating nonclassical effects over longer and longer distances is essential for both quantum technology and fundamental science. The main challenge is the loss of photons during propagation, because considering only those cases where photons are detected opens a “detection loophole” in security...

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Main Authors:	A. J. Bennet, D. A. Evans, D. J. Saunders, C. Branciard, E. G. Cavalcanti, H. M. Wiseman, G. J. Pryde
Format:	Article
Language:	English
Published:	American Physical Society 2012-07-01
Series:	Physical Review X
Online Access:	http://doi.org/10.1103/PhysRevX.2.031003

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spelling	doaj-bf6889839c474e14915a23b40c4118ae2020-11-24T20:41:29ZengAmerican Physical SocietyPhysical Review X2160-33082012-07-012303100310.1103/PhysRevX.2.031003Arbitrarily Loss-Tolerant Einstein-Podolsky-Rosen Steering Allowing a Demonstration over 1 km of Optical Fiber with No Detection LoopholeA. J. BennetD. A. EvansD. J. SaundersC. BranciardE. G. CavalcantiH. M. WisemanG. J. PrydeDemonstrating nonclassical effects over longer and longer distances is essential for both quantum technology and fundamental science. The main challenge is the loss of photons during propagation, because considering only those cases where photons are detected opens a “detection loophole” in security whenever parties or devices are untrusted. Einstein-Podolsky-Rosen steering is equivalent to an entanglement-verification task in which one party (device) is untrusted. We derive arbitrarily loss-tolerant tests, enabling us to perform a detection-loophole-free demonstration of Einstein-Podolsky-Rosen steering with parties separated by a coiled 1-km-long optical fiber, with a total loss of 8.9 dB (87%).http://doi.org/10.1103/PhysRevX.2.031003
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	A. J. Bennet D. A. Evans D. J. Saunders C. Branciard E. G. Cavalcanti H. M. Wiseman G. J. Pryde
spellingShingle	A. J. Bennet D. A. Evans D. J. Saunders C. Branciard E. G. Cavalcanti H. M. Wiseman G. J. Pryde Arbitrarily Loss-Tolerant Einstein-Podolsky-Rosen Steering Allowing a Demonstration over 1 km of Optical Fiber with No Detection Loophole Physical Review X
author_facet	A. J. Bennet D. A. Evans D. J. Saunders C. Branciard E. G. Cavalcanti H. M. Wiseman G. J. Pryde
author_sort	A. J. Bennet
title	Arbitrarily Loss-Tolerant Einstein-Podolsky-Rosen Steering Allowing a Demonstration over 1 km of Optical Fiber with No Detection Loophole
title_short	Arbitrarily Loss-Tolerant Einstein-Podolsky-Rosen Steering Allowing a Demonstration over 1 km of Optical Fiber with No Detection Loophole
title_full	Arbitrarily Loss-Tolerant Einstein-Podolsky-Rosen Steering Allowing a Demonstration over 1 km of Optical Fiber with No Detection Loophole
title_fullStr	Arbitrarily Loss-Tolerant Einstein-Podolsky-Rosen Steering Allowing a Demonstration over 1 km of Optical Fiber with No Detection Loophole
title_full_unstemmed	Arbitrarily Loss-Tolerant Einstein-Podolsky-Rosen Steering Allowing a Demonstration over 1 km of Optical Fiber with No Detection Loophole
title_sort	arbitrarily loss-tolerant einstein-podolsky-rosen steering allowing a demonstration over 1 km of optical fiber with no detection loophole
publisher	American Physical Society
series	Physical Review X
issn	2160-3308
publishDate	2012-07-01
description	Demonstrating nonclassical effects over longer and longer distances is essential for both quantum technology and fundamental science. The main challenge is the loss of photons during propagation, because considering only those cases where photons are detected opens a “detection loophole” in security whenever parties or devices are untrusted. Einstein-Podolsky-Rosen steering is equivalent to an entanglement-verification task in which one party (device) is untrusted. We derive arbitrarily loss-tolerant tests, enabling us to perform a detection-loophole-free demonstration of Einstein-Podolsky-Rosen steering with parties separated by a coiled 1-km-long optical fiber, with a total loss of 8.9 dB (87%).
url	http://doi.org/10.1103/PhysRevX.2.031003
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Arbitrarily Loss-Tolerant Einstein-Podolsky-Rosen Steering Allowing a Demonstration over 1 km of Optical Fiber with No Detection Loophole

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