From pre- to post-big bang: an (almost) self-dual cosmological history
High Energy Physics - Theory
2022-08-03 v1 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
Abstract
We present a short introduction to a non-standard cosmological scenario motivated by the duality symmetries of string theory, in which the big bang singularity is replaced with a "big bounce" at high but finite curvature. The bouncing epoch is prepared by a long (possibly infinitely extended) phase of cosmic evolution, starting from an initial state asymptotically approaching the string perturbative vacuum.
Keywords
Cite
@article{arxiv.2106.12865,
title = {From pre- to post-big bang: an (almost) self-dual cosmological history},
author = {M. Gasperini},
journal= {arXiv preprint arXiv:2106.12865},
year = {2022}
}
Comments
This paper is dedicated to the memory of John D. Barrow