How QIT Arguments Rely on Symmetry - Renato Renner

Workshop on Quantum Information and Physics
Topic: How QIT Arguments Rely on Symmetry
Speaker: Renato Renner
Affiliation: ETH Zürich
Date: September 03, 2024
In quantum information theory (QIT), arguments often rely - sometimes implicitly - on the assumption that a given process can be repeated identically and independently many times. However, establishing the stochastic independence of repeated processes from physical principles is challenging. The quantum de Finetti theorem offers a solution by deriving stochastic independence from symmetry principles. In my talk, I will review the quantum de Finetti theorem and discuss its use in QIT arguments, with a particular focus on the black hole information puzzle.