BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Marian Kupczyński (UQO) DTSTART:20211125T160000Z DTEND:20211125T180000Z DTSTAMP:20260423T011100Z UID:QMFNoT/24 DESCRIPTION:Title: Quantum nonlocality: how does nature do it?\nby Marian Kupczyński (UQ O) as part of QM Foundations & Nature of Time seminar\n\n\nAbstract\nLocal realistic and stochastic hidden variable models define experimental proto cols\, which are inconsistent with experimental protocols used in real Bel l Tests. Therefore\, it is not surprising that they fail to describe corre ctly the experimental data. In 2009 Nicholas Gisin claimed in Science\, th at quantum correlations come from outside the space-time due to the quantu m magic. Since we do not believe in magic\, we propose a locally causal ex planation of these correlations. Neither super-determinism nor retro- caus ality is needed\, nor is experimenter’s freedom of choice (EFO) compromi sed. In our contextual model\, setting dependent variables describing meas uring instruments are correctly introduced. Outcomes are predetermined bot h by instrument variables and variables describing incoming correlated sig nals at the moment of the measurement. There does not exist a joint probab ility distribution of variables describing all the possible settings\, thu s Bell inequalities may not be derived. In this talk\, based on the artic les listed below\, we also explain in detail why the assumption called fre e choice-no conspiracy-measurement independence has nothing to do with EFO and should be rather called noncontextuality assumption. The violation of Bell inequalities neither implies the nonlocality of Nature nor the viola tion of EFO. It only confirms the contextuality of some observables in qu antum domain and that outcomes are not predetermined before the experiment is done.\n LOCATION:https://researchseminars.org/talk/QMFNoT/24/ END:VEVENT END:VCALENDAR