Violation of Bell's Inequality under Strict Einstein Locality Conditions

Phys. Rev. Lett. 81, 5039 – Published 7 December 1998
Gregor Weihs, Thomas Jennewein, Christoph Simon, Harald Weinfurter, and Anton Zeilinger

Abstract

We observe strong violation of Bell's inequality in an Einstein-Podolsky-Rosen-type experiment with independent observers. Our experiment definitely implements the ideas behind the well-known work by Aspect et al. We for the first time fully enforce the condition of locality, a central assumption in the derivation of Bell's theorem. The necessary spacelike separation of the observations is achieved by sufficient physical distance between the measurement stations, by ultrafast and random setting of the analyzers, and by completely independent data registration.

DOI: http://dx.doi.org/10.1103/PhysRevLett.81.5039

  • Received 6 August 1998
  • Published in the issue dated 7 December 1998

© 1998 The American Physical Society

Authors & Affiliations

Gregor Weihs, Thomas Jennewein, Christoph Simon, Harald Weinfurter, and Anton Zeilinger

  • Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, A-6020 Innsbruck, Austria

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