Holographic bounds on the UV cutoff scale in inflationary cosmology

Details Holographic bounds on the UV cutoff scale in inflationary cosmology Holographic bounds on the UV cutoff scale in inflationary cosmology

2003-06-09

arxiv.org/abs/hep-th/0306070v3

JCAP 0308 (2003) 001

Physics

High Energy Physics

High Energy Physics - Theory

19 pages, 2 figures;(V3):Comments and references added

Scientific paper

10.1088/1475-7516/2003/08/001

We discuss how holographic bounds can be applied to the quantum fluctuations of the inflaton. In general the holographic principle will lead to a bound on the UV cutoff scale of the effective theory of inflation, but it will depend on the coarse-graining prescription involved in calculating the entropy. We propose that the entanglement entropy is a natural measure of the entropy of the quantum perturbations, and show which kind of bound on the cutoff it leads to. Such bounds are related to whether the effects of new physics will show up in the CMB.

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