Work

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

Year: 2002

Type: article

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.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.88.030401

Authors: John C. Howell, Antia Lamas-Linares, Dik Bouwmeester

Institution: University of Oxford

Language: English

Topic: Quantum Mechanics and Applications

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Engineering and Physical Sciences Research Council

OpenAlex ID: W1965620143

FWCI: 11.82

Cites: 36

Cited by: 202

Related to: 10