Emergent de Sitter epoch of the quantum Cosmos
General Relativity and Quantum Cosmology
2018-08-29 v2
Abstract
The quantum nature of the Big Bang is reexamined in the framework of Loop Quantum Cosmology. The strict application of a regularization procedure to the Hamiltonian, originally developed for the Hamiltonian in loop quantum gravity, leads to a qualitative modification of the bounce paradigm. Quantum gravity effects still lead to a quantum bounce connecting deterministically large classical Universes. However, the evolution features a large epoch of de Sitter Universe, with emergent cosmological constant of Planckian order, smoothly transiting into a flat expanding Universe.
Keywords
Cite
@article{arxiv.1801.00768,
title = {Emergent de Sitter epoch of the quantum Cosmos},
author = {Mehdi Assanioussi and Andrea Dapor and Klaus Liegener and Tomasz Pawłowski},
journal= {arXiv preprint arXiv:1801.00768},
year = {2018}
}
Comments
6 pages, 2 figures, revised version accepted for publication in Phys.Rev.Lett., with the addition of fig.2 and subsequent comments