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Quantum Gravity Constraints on Inflation

Abstract:

We study quantum gravity constraints on inflationary model building. Our approach is based on requiring the entropy associated to a given inflationary model to be less than that of the de Sitter entropy. We give two prescriptions for determining the inflationary entropy, based on either `bits per unit area' or entanglement entropy. The existence of transPlanckian flat directions, necessary for large tensor modes in the CMB, correlates with an inflationary entropy greater than that allowed by ...

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Publication status:
Published

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Journal:
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Volume:
2012
Issue:
9
Pages:
019-019
Publication date:
2012-03-25
DOI:
EISSN:
1475-7516
ISSN:
1475-7516
URN:
uuid:b30a3a62-d693-48fa-ba8f-b6a0d5782165
Source identifiers:
320493
Local pid:
pubs:320493

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