Analysis of coincidence-time loopholes in experimental Bell tests

作者:Christensen B G*; Hill A; Kwiat P G; Knill E; Nam S W; Coakley K; Glancy S; Shalm L K; Zhang Y
来源:Physical Review A, 2015, 92(3): 032130.
DOI:10.1103/PhysRevA.92.032130

摘要

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 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.

  • 出版日期2015-9-28