Arbitrarily loss-tolerant Einstein-Podolsky-Rosen steering allowing a demonstration over 1 km of optical fiber with no detection loophole

Bennet, A. J., Evans, D. A., Saunders, D. J., Branciard, C., Cavalcanti, E. G., Wiseman, H. M. and Pryde, G. J. (2012) Arbitrarily loss-tolerant Einstein-Podolsky-Rosen steering allowing a demonstration over 1 km of optical fiber with no detection loophole. Physical Review X, 2 3: 031003.1-031003.12.

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Author Bennet, A. J.
Evans, D. A.
Saunders, D. J.
Branciard, C.
Cavalcanti, E. G.
Wiseman, H. M.
Pryde, G. J.
Title Arbitrarily loss-tolerant Einstein-Podolsky-Rosen steering allowing a demonstration over 1 km of optical fiber with no detection loophole
Journal name Physical Review X   Check publisher's open access policy
Publication date 2012-07
Sub-type Article
DOI 10.1103/PhysRevX.2.031003
Volume number 2
Issue number 3
ISSN 2160-3308
Start page 031003.1
End page 031003.12
Total pages 12
Place of publication College Park, MD, United States
Publisher American Physical Society
Collection year 2013
Language eng
Abstract 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%).
Keyword Quantum Communication
Entangled Photons
Bell Inequalities
Violation
Distance
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article
Collections: School of Mathematics and Physics
Official 2013 Collection
 
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