Prof. Rafael Chaves
International Institute of Physics, Natal, Brazil.
11th October 2021 - 4:00 pm - 5:00 pm (GST)
Interventions, causality and quantum correlations
Since Bell's theorem, it is known that the concept of local realism fails to explain quantum phenomena. Indeed, the violation of a Bell inequality has become a synonym of the incompatibility of quantum theory with our classical notion of cause and effect. As recently discovered, however, the instrumental scenario -a tool of central importance in causal inference- allows for signatures of nonclassicality that do not hinge on this paradigm. If, instead of relying on observational data only, we can also intervene in our experimental setup, quantum correlations can violate