PIRSA:19090063

Video URL

https://pirsa.org/19090063

Operational Causality in Spacetime

Eckstein, M. (2019). Operational Causality in Spacetime. Perimeter Institute for Theoretical Physics. https://pirsa.org/19090063

Eckstein, Michal. Operational Causality in Spacetime. Perimeter Institute for Theoretical Physics, Sep. 03, 2019, https://pirsa.org/19090063 

          @misc{ scivideos_PIRSA:19090063,
            doi = {10.48660/19090063},
            url = {https://pirsa.org/19090063},
            author = {Eckstein, Michal},
            keywords = {Quantum Foundations},
            language = {en},
            title = {Operational Causality in Spacetime},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2019},
            month = {sep},
            note = {PIRSA:19090063 see, \url{https://scivideos.org/pirsa/19090063}}
          }

Michal Eckstein Jagiellonian University

Talk numberPIRSA:19090063
DOI10.48660/19090063
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

The no-signalling principle, preventing superluminal communication and the consequent logical paradoxes, is typically formulated within the information-theoretic framework in terms of admissible correlations in composite systems. In my talk, I will present its complementary incarnation associated with dynamics of single systems subject to invasive measurements. The `dynamical no-signalling principle' applies to any theory with well defined rules of calculating detection statistics in spacetime. It thus offers a new framework, based on measure theory, for studying ``post-quantum'' theories in spacetime. I will show that, strikingly, the `dynamical no-signalling' principle rules out some of the well know models of quantum wave dynamics.