Moreau, P.-A. , Toninelli, E., Gregory, T., Aspden, R. S., Morris, P. A. and Padgett, M. J. (2019) Imaging Bell-type nonlocal behaviour. Science Advances, 5(7), eaaw2563. (doi: 10.1126/sciadv.aaw2563)
|
Text
186036.pdf - Published Version Available under License Creative Commons Attribution. 1MB |
Abstract
The violation of a Bell inequality not only attests to the nonclassical nature of a system but also holds a very unique status within the quantum world. The amount by which the inequality is violated often provides a good benchmark on how a quantum protocol will perform. Acquiring images of such a fundamental quantum effect is a demonstration that images can capture and exploit the essence of the quantum world. Here, we report an experiment demonstrating the violation of a Bell inequality within observed images. It is based on acquiring full-field coincidence images of a phase object probed by photons from an entangled pair source. The image exhibits a violation of a Bell inequality with S = 2.44 ± 0.04. This result both opens the way to new quantum imaging schemes based on the violation of a Bell inequality and suggests promise for quantum information schemes based on spatial variables.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Padgett, Professor Miles and Aspden, Mr Reuben and Moreau, Dr Paul-Antoine and Gregory, Dr Thomas and Toninelli, Mr Ermes and MORRIS, PETER |
| Authors: | Moreau, P.-A., Toninelli, E., Gregory, T., Aspden, R. S., Morris, P. A., and Padgett, M. J. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Science Advances |
| Publisher: | American Association for the Advancement of Science |
| ISSN: | 2375-2548 |
| ISSN (Online): | 2375-2548 |
| Published Online: | 12 July 2019 |
| Copyright Holders: | Copyright © 2019 The Authors |
| First Published: | First published in Science Reports 5(7):eaaw2563 |
| Publisher Policy: | Reproduced under a Creative Commons license |
University Staff: Request a correction | Enlighten Editors: Update this record
Funder and Project Information
Funder and Project Information