Issues Concerning Loop Corrections to the Primordial Power Spectra - INSPIRE

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Issues Concerning Loop Corrections to the Primordial Power Spectra

S.P. Miao
(
- Utrecht U.
)
,
R.P. Woodard
(
- Florida U.
)

Apr, 2012

33 pages

Published in:

JCAP 07 (2012) 008

e-Print:

1204.1784 [astro-ph.CO]

DOI:

10.1088/1475-7516/2012/07/008

Report number:

ITP-UU-12-09,
SPIN-12-08,
UFIFT-QG-11-04

View in:

ADS Abstract Service

reference search41 citations

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Abstract: (arXiv)

We expound ten principles in an attempt to clarify the debate over infrared loop corrections to the primordial scalar and tensor power spectra from inflation. Among other things we note that existing proposals for nonlinear extensions of the scalar fluctuation field

\zeta

introduce new ultraviolet divergences which no one understands how to renormalize. Loop corrections and higher correlators of these putative observables would also be enhanced by inverse powers of the slow roll parameter

\epsilon

. We propose an extension which should be better behaved.

Note:

36 pages, uses LaTeX2e, version 3 revised for publication with a much expanded section 4, proving that our proposed extension of the zeta-zeta correlator absorbs the one loop infrared divergences from gravitons

04.60.-m
04.62.+v
98.80.Cq
power spectrum: primordial
power spectrum: tensor
fluctuation: scalar
slow-roll approximation
correlation function
ultraviolet
nonlinear

References(155)

Figures(0)

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