Yang Mills Topology and Spectral Probes of Quantum Spacetime - Quantum Gravity SeminarConfirmed

by Daniel Nemeth (Radboud University)

Wednesday Dec 3, 2025, 11:00 AM → 1:00 PM America/Toronto

PI/3-394 - Skyroom (Perimeter Institute for Theoretical Physics)

Most physical theories assume that spacetime is four dimensional, a claim strongly supported by high precision accelerator and cosmological measurements. It is also well known that at the Planck scale our quantum theories, and perhaps physics itself, break down. This raises a natural question: what happens to spacetime at the smallest scales, where quantum fluctuations may alter the familiar four dimensional structure? What is the dimension of quantum spacetime? How should we understand topology in this regime, and can matter and spacetime topology be defined independently? My talk will present possible answers to these questions through the lens of Causal Dynamical Triangulations.