Journal
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Volume -, Issue 7, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1475-7516/2012/07/008
Keywords
power spectrum; inflation; quantum gravity phenomenology; CMBR theory
Funding
- NWO [680-47-406]
- NSF [PHY-0855021]
- Institute for Fundamental Theory at the University of Florida
- Division Of Physics
- Direct For Mathematical & Physical Scien [855021] Funding Source: National Science Foundation
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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.
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