Anomalous Postselection in the Hensen et al. Bell Test

Abstract

It is shown that the data of the Hensen et al. Bell test experiment exhibits anomalous postselection that can fully account for the apparent violation of the CHSH inequality. A simulation of a local realist model implementing similar postselection is presented. The model produces an apparent violation of CHSH indistinguishable from that of the experiment. The experimental data also appears to violate no-signaling, and it is shown how postselection can produce an artifactual violation of no-signaling. The Hensen et al. experiment does not succeed in rejecting classical locality and therefore does not confirm quantum nonlocality.

References in corpus (4)

• Loopholes in Bell Inequality Tests of Local Realism
• Loophole-free Bell test using electron spins in diamond: second experiment and additional analysis
• Test of the no-signaling principle in the Hensen "loophole-free CHSH experiment"
• Analysis of the Christensen et al. Clauser-Horne (CH)-Inequality-Based Test of Local Realism

Cited by in corpus (3)

• Understanding quantum mechanics: a review and synthesis in precise language
• Violation of no-signaling on a public quantum computer
• Violation of Bell Inequalities: Mapping the Conceptual Implications