Title: Correlations, Representations and the Emergence of Spacetime
Abstract: There are reasons to expect that spacetime might change dimension at sufficiently high energies or at least that, at energies as high as the Planck scale, spacetime might emerge from an essentially non-geometric structure. The question is, how the phenomena of the emergence of spacetime, and possibly also its change(s) of dimension, could be described mathematically. I am proposing that the physics of the emergence of spacetime, and possible dimension change, could correspond to a mathematical structure that possesses different mathematical representations in different regimes. In the concrete approach that I will present, the number of spacetime dimensions is found to be determined by the balance of a generalized bosonic pull and a fermionic push. This balance depends on the number of bosonic and fermionic species present at a given mass scale, which then accounts for the changing of dimensions with energy and also allows for non-geometric regimes. The proposed approach is entirely information theoretic. The talk is based on these papers: A. Kempf, Frontiers in Physics, 9, 655857 (2021), arxiv:2110.08278 M. Reitz, B. Soda, A. Kempf, Phys. Rev. Lett. 131, 211501 (2023), arxiv:2303.01519
Talk – Slides
Talk – Video
Leave a Comment
Last Updated: 25th March 2024 by George Rogers
Achim Kempf (University of Waterloo & Perimeter Institute)
Title: Correlations, Representations and the Emergence of Spacetime
Abstract: There are reasons to expect that spacetime might change dimension at sufficiently high energies or at least that, at energies as high as the Planck scale, spacetime might emerge from an essentially non-geometric structure. The question is, how the phenomena of the emergence of spacetime, and possibly also its change(s) of dimension, could be described mathematically. I am proposing that the physics of the emergence of spacetime, and possible dimension change, could correspond to a mathematical structure that possesses different mathematical representations in different regimes. In the concrete approach that I will present, the number of spacetime dimensions is found to be determined by the balance of a generalized bosonic pull and a fermionic push. This balance depends on the number of bosonic and fermionic species present at a given mass scale, which then accounts for the changing of dimensions with energy and also allows for non-geometric regimes. The proposed approach is entirely information theoretic. The talk is based on these papers: A. Kempf, Frontiers in Physics, 9, 655857 (2021), arxiv:2110.08278 M. Reitz, B. Soda, A. Kempf, Phys. Rev. Lett. 131, 211501 (2023), arxiv:2303.01519
Talk – Slides
Talk – Video
Category: Uncategorised
Recent Posts
DIAS Astrophotography competition goes mobile for 2024
Irish scientists are part of groundbreaking discovery with James Webb Space Telescope
Dr Pauline Gagnon (formerly of CERN) to deliver two talks at DIAS
DIAS Professor announced as next President of the European Southern Observatory’s Council
Quake Shake: New programme encourages people to get involved in monitoring earthquakes
Language switcher