Effective Planck mass and the scale of inflation

Matthew Kleban; Mehrdad Mirbabayi; Massimo Porrati

doi:10.1088/1475-7516/2016/01/017

Effective Planck mass and the scale of inflation

Matthew Kleban, Mehrdad Mirbabayi, Massimo Porrati

Research output: Contribution to journal › Article › peer-review

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.

Original language	English (US)
Article number	017
Journal	Journal of Cosmology and Astroparticle Physics
Volume	2016
Issue number	1
DOIs	https://doi.org/10.1088/1475-7516/2016/01/017
State	Published - Jan 11 2016

Keywords

cosmological parameters from CMBR
gravitational waves and CMBR polarization
inflation
modified gravity

ASJC Scopus subject areas

Astronomy and Astrophysics

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10.1088/1475-7516/2016/01/017

Cite this

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KW - modified gravity

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Effective Planck mass and the scale of inflation

Abstract

Keywords

ASJC Scopus subject areas

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