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arXiv · 1503.07573

Analysis of Coincidence-Time Loopholes in Experimental Bell Tests

B. G. Christensen·A. Hill·P. G. Kwiat·E. Knill·S. W. Nam·K. Coakley·S. Glancy·L. K. Shalm·Y. Zhang
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Abstract

We apply a distance-based Bell-test analysis method [E. Knill et al., Phys. Rev. A. 91, 032105 (2015)] to three experimental data sets where conventional analyses failed or required additional assumptions. The first is produced from a new classical source exploiting a "coincidence-time loophole" for which standard analysis falsely shows a Bell violation. The second is from a source previously shown to violate a Bell inequality; the distance-based analysis agrees with the previous results but with fewer assumptions. The third data set does not show a violation with standard analysis despite the high source quality, but is shown to have a strong violation with the distance-based analysis method.

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B. G. Christensen, A. Hill, P. G. Kwiat, E. Knill, S. W. Nam, K. Coakley, S. Glancy, L. K. Shalm, Y. Zhang. 2015-03-25. Analysis of Coincidence-Time Loopholes in Experimental Bell Tests. https://doi.org/10.1103/physreva.92.032130

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