Speaker
Eduardo Martín-Martínez
(University of Waterloo)
Description
What happens when one measures a quantum system in a relativistic setting? We will address the challenge of consistently updating quantum states after selective measurements in a relativistic spacetime. Standard updates along the future lightcones preserve causality but break correlations between causally disconnected parties, whereas updates along the past lightcone can either imply retrocausality or not respect the causal propagation of information. We introduce a minimal extension of multipartite states to encode subsystem-specific contextual information.
Author
Eduardo Martín-Martínez
(University of Waterloo)
