Published in

Research in Optical Sciences

DOI: 10.1364/qim.2012.qt4a.4

American Physical Society, Physical Review X, 3(2), 2012

DOI: 10.1103/physrevx.2.031003

Links

Tools

Export citation

Search in Google Scholar

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

Journal article published in 2012 by A. J. Bennet, David A. Evans, Dylan J. Saunders, Cyril Branciard, E. G. Cavalcanti, Howard M. Wiseman ORCID, Geoff J. Pryde
This paper is available in a repository.
This paper is available in a repository.

Full text: Download

Question mark in circle
Preprint: policy unknown
Upload
Question mark in circle
Postprint: policy unknown
Upload
Question mark in circle
Published version: policy unknown
Upload

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%).