Abstract

I discuss the new dimension that the relational approach to the problem of time takes in quantum gravity contexts in which spacetime and geometry are understood as emergent. I argue that, in this case, the relational strategy is best realized at an approximate and effective level, after suitable coarse graining and only in terms of special quantum states. I then show a concrete realization of such effective relational dynamics in the context of a cosmological application of the tensorial group field theory formalism for quantum gravity.

Details

Talk Number 21060115
Speaker Profile Luca Marchetti
Date
Collection Quantizing Time
Source
Perimeter Institute Recorded Seminar Archive
Subject Quantum Physics