Operational Causality in Spacetime
PIRSA ID:
19090063
Série :
Quantum Foundations
Event Type:
Seminar
Domaine(s) scientifique(s) :
Quantum Foundations
Date de fin :
Speaker(s):
- Michal Eckstein, Jagiellonian University
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.