Effective Planck Mass and the Scale of Inflation
High Energy Physics - Theory
2016-01-20 v3 Cosmology and Nongalactic Astrophysics
Abstract
A recent paper argued that it is not possible to infer the energy scale of inflation from the amplitude of tensor fluctuations in the Cosmic Microwave Background, because the usual connection is substantially altered if there are a large number of universally coupled fields present during inflation, with mass less than the inflationary Hubble scale. We give a simple argument demonstrating that this is incorrect.
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Cite
@article{arxiv.1508.01527,
title = {Effective Planck Mass and the Scale of Inflation},
author = {Matthew Kleban and Mehrdad Mirbabayi and Massimo Porrati},
journal= {arXiv preprint arXiv:1508.01527},
year = {2016}
}
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4 pages