Entanglement’s Benefit Survives an Entanglement-Breaking Channel

Entanglement is essential to many quantum information applications, but it is easily destroyed by quantum decoherence arising from interaction with the environment. We report the first experimental demonstration of an entanglement-based protocol that is resilient to loss and noise which destroy enta...

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Main Authors: Zhang, Zheshen, Tengner, Maria, Zhong, Tian, Wong, Franco N. C., Shapiro, Jeffrey H.
Other Authors: Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Format: Article
Language:en_US
Published: American Physical Society 2013
Online Access:http://hdl.handle.net/1721.1/79905
https://orcid.org/0000-0003-1998-6159
https://orcid.org/0000-0002-6094-5861
https://orcid.org/0000-0002-8668-8162
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author Zhang, Zheshen
Tengner, Maria
Zhong, Tian
Wong, Franco N. C.
Shapiro, Jeffrey H.
author2 Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
author_facet Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Zhang, Zheshen
Tengner, Maria
Zhong, Tian
Wong, Franco N. C.
Shapiro, Jeffrey H.
author_sort Zhang, Zheshen
collection MIT
description Entanglement is essential to many quantum information applications, but it is easily destroyed by quantum decoherence arising from interaction with the environment. We report the first experimental demonstration of an entanglement-based protocol that is resilient to loss and noise which destroy entanglement. Specifically, despite channel noise 8.3 dB beyond the threshold for entanglement breaking, eavesdropping-immune communication is achieved between Alice and Bob when an entangled source is used, but no such immunity is obtainable when their source is classical. The results prove that entanglement can be utilized beneficially in lossy and noisy situations, i.e., in practical scenarios.
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spelling mit-1721.1/799052022-10-02T06:25:01Z Entanglement’s Benefit Survives an Entanglement-Breaking Channel Zhang, Zheshen Tengner, Maria Zhong, Tian Wong, Franco N. C. Shapiro, Jeffrey H. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology. Research Laboratory of Electronics Zhang, Zheshen Tengner, Maria Zhong, Tian Wong, Franco N. C. Shapiro, Jeffrey H. Entanglement is essential to many quantum information applications, but it is easily destroyed by quantum decoherence arising from interaction with the environment. We report the first experimental demonstration of an entanglement-based protocol that is resilient to loss and noise which destroy entanglement. Specifically, despite channel noise 8.3 dB beyond the threshold for entanglement breaking, eavesdropping-immune communication is achieved between Alice and Bob when an entangled source is used, but no such immunity is obtainable when their source is classical. The results prove that entanglement can be utilized beneficially in lossy and noisy situations, i.e., in practical scenarios. United States. Office of Naval Research (Basic Research Challenge Grant) 2013-08-21T19:17:35Z 2013-08-21T19:17:35Z 2013-07 2013-03 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/79905 Zhang, Zheshen, Maria Tengner, Tian Zhong, Franco N. C. Wong, and Jeffrey H. Shapiro. “Entanglement’s Benefit Survives an Entanglement-Breaking Channel.” Physical Review Letters 111, no. 1 (July 2013). © 2013 American Physical Society https://orcid.org/0000-0003-1998-6159 https://orcid.org/0000-0002-6094-5861 https://orcid.org/0000-0002-8668-8162 en_US http://dx.doi.org/10.1103/PhysRevLett.111.010501 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS
spellingShingle Zhang, Zheshen
Tengner, Maria
Zhong, Tian
Wong, Franco N. C.
Shapiro, Jeffrey H.
Entanglement’s Benefit Survives an Entanglement-Breaking Channel
title Entanglement’s Benefit Survives an Entanglement-Breaking Channel
title_full Entanglement’s Benefit Survives an Entanglement-Breaking Channel
title_fullStr Entanglement’s Benefit Survives an Entanglement-Breaking Channel
title_full_unstemmed Entanglement’s Benefit Survives an Entanglement-Breaking Channel
title_short Entanglement’s Benefit Survives an Entanglement-Breaking Channel
title_sort entanglement s benefit survives an entanglement breaking channel
url http://hdl.handle.net/1721.1/79905
https://orcid.org/0000-0003-1998-6159
https://orcid.org/0000-0002-6094-5861
https://orcid.org/0000-0002-8668-8162
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