Emergent Early Universe Cosmology from BFSS Matrix Theory
High Energy Physics - Theory
2022-12-07 v1 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
The BFSS matrix model is a suggested non-perturbative definition of string theory. Starting from a thermal state of this matrix model, we show how space and time can emerge dynamically. Results from the IKKT matrix model indicate that the symmetry of space is spontaneously broken to , with the three-dimensional subspace becoming large. Given this initial state for the universe, we show that cosmological perturbations and gravitational waves with scale-invariant spectra are generated, without the need of postulating an early phase of cosmological inflation. The Big Bang singularity is automatically resolved.
Keywords
Cite
@article{arxiv.2205.06016,
title = {Emergent Early Universe Cosmology from BFSS Matrix Theory},
author = {Suddhasattwa Brahma and Robert Brandenberger and Samuel Laliberte},
journal= {arXiv preprint arXiv:2205.06016},
year = {2022}
}
Comments
Essay written for the Gravity Research Foundation 2022 Awards for Essays on Gravitation, honorary mention, 10 pages, 1 figure