Observational effects from quantum cosmology
General Relativity and Quantum Cosmology
2013-10-08 v3 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
The status of quantum cosmologies as testable models of the early universe is assessed in the context of inflation. While traditional Wheeler-DeWitt quantization is unable to produce sizable effects in the cosmic microwave background, the more recent loop quantum cosmology can generate potentially detectable departures from the standard cosmic spectrum. Thus, present observations constrain the parameter space of the model, which could be made falsifiable by near-future experiments.
Cite
@article{arxiv.1209.0473,
title = {Observational effects from quantum cosmology},
author = {Gianluca Calcagni},
journal= {arXiv preprint arXiv:1209.0473},
year = {2013}
}
Comments
16 pages, 3 figures. Invited review article also containing original material. v2: new section on holonomy corrections, introduction extended, references added, typos corrected; v3: includes corrections of eqs. (3), (62) and (64c) of the erratum