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Special
Lecture
Venue: Physics Building, Max-von-Laue-Str. 1, Seminar
Room PHYS 2.116
Time: Monday, June 13, 3:00 pm (s.t.)
Contact: hees@fias.uni-frankfurt.de
The EPR experiment: What does it tell
us?
Mark Alford (Washington University
St. Louis)
Recently
a new "loophole-free" Einstein-Podolsky-Rosen (EPR) experiment was
completed (Hensen et al, Nature 526, 682), and, as predicted by quantum
mechanics, the result violated the famous Bell inequality.
This talk will review the importance of EPR-type experiments, and
explain what they tell us. I will give a simple non-mathematical
explanation of Bell's inequality, and show that violation of the
inequality means that nature violates the principle of strong locality,
also known as local causality. I will talk about some of the
implications, such as the relationship between EPR and the Principle of
Relativity, the distinction between causal influences and signals, and
the tension between EPR and determinism.
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