Analysis of the Christensen et al. Clauser-Horne (CH)-Inequality-Based Test of Local Realism

TL;DR

This paper critically analyzes a recent CH-based EPRB experiment, confirming locality and challenging quantum predictions, while emphasizing proper data analysis and offering a new interpretation of the EPR paradox.

Contribution

It provides a detailed reanalysis of the Christensen et al. experiment, highlighting the importance of correct data handling and proposing a new rational interpretation of the EPR paradox.

Findings

The experiment confirms locality.

It disconfirms the quantum joint prediction.

Proper data analysis is crucial for EPRB experiments.

Abstract

The Clauser-Horne (CH) inequality can validly test aspects of locality when properly applied. This paper analyzes a recent CH-based EPRB experiment, the Christensen et al. experiment. Full details of the data analysis applied to the experiment are given. An alternative analysis is also presented that considers the role of accidental coincidences and confirms and justifies the main analysis. It is shown that the experiment confirms locality and disconfirms the quantum joint prediction. To make sense of this surprising finding, the conclusion presents a new rational interpretation of the EPR paradox. The paper also contributes to promulgation of robust and correct data analysis by describing the important degrees of freedom that affect the analysis, and that must be addressed in the analysis of any EPRB experiment.