Experimental Violation of a Spin-1 Bell Inequality Using Maximally Entangled Four-Photon States

Authors

John C. Howell, Chapman UniversityFollow
Antia Lamas-Linares, University of Oxford
Dik Bouwmeester, University of Oxford

Document Type

Article

Publication Date

1-3-2002

Abstract

We demonstrate the experimental violation of a spin-1 Bell inequality. The spin-1 inequality is based on the Clauser, Horne, Shimony, and Holt formalism. For entangled spin-1 particles, the maximum quantum-mechanical prediction is 2.55 as opposed to a maximum of 2, predicted using local hidden variables. We obtained an experimental value of 2.27±0.02 using the four-photon state generated by pulsed, type-II, stimulated parametric down-conversion. This is a violation of the spin-1 Bell inequality by more than 13 standard deviations.

Comments

This article was originally published in Physical Review Letters, volume 88, issue 3, in 2002. https://doi.org/10.1103/PhysRevLett.88.030401

Recommended Citation

J. C. Howell, A. Lamas-Linares, and D. Bouwmeester, Experimental Violation of a Spin-1 Bell Inequality Using Maximally Entangled Four-Photon States, Phys. Rev. Lett. 88(3), 030401. https://doi.org/10.1103/PhysRevLett.88.030401

Peer Reviewed

1

Copyright

American Physical Society