New loophole free EPR test with photons by Wittmann et al

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The discussion centers on a recent paper by Wittmann et al. that claims to present a "loophole-free" Einstein-Podolsky-Rosen (EPR) experiment using quantum steering. Participants express skepticism about the paper's conclusions, questioning whether it truly achieves a loophole-free status due to concerns about coincidence detection and the choice of publication in New J. Phys. instead of more prestigious journals. The conversation explores the distinction between quantum steering and Bell tests, with some arguing that steering may not fully exclude local hidden variable theories (LHV). There is also debate over the implications of the findings for nonlocality and whether the experimental setup adequately addresses potential biases. Overall, the paper's significance and the validity of its claims remain contentious within the forum.
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harrylin said:
As I understood all discussions until now, "nonlocal" means a correlation that can not be explained without something "spooky" as instantaneous "action at a distance". And I assumed that "Bell-nonlocality" is essentially the same, but with precise arguments that lead to that conclusion as presented by Bell.
Yes, that's correct.
 

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