Birth of de Sitter Universe from time crystal
High Energy Physics - Theory
2019-12-25 v1 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
Abstract
We show that a simple sub-class of Horndeski theory can describe a time crystal Universe. The time crystal Universe can be regarded as a baby Universe nucleated from a flat space, which is mediated by an extension of Giddings-Strominger instanton in a 2-form theory dual to the Horndeski theory. Remarkably, when a cosmological constant is included, de Sitter Universe can be created by tunneling from the time crystal Universe. It gives rise to a past completion of an inflationary Universe.
Keywords
Cite
@article{arxiv.1909.05533,
title = {Birth of de Sitter Universe from time crystal},
author = {Daisuke Yoshida and Jiro Soda},
journal= {arXiv preprint arXiv:1909.05533},
year = {2019}
}
Comments
13 pages, 14 figures