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Title: Spectral regularisation: induced gravity and the onset of inflation

Using spectral regularisation, we compute the Weyl anomaly and express the anomaly generating functional of the quantum effective action through a collective scalar degree of freedom of all quantum vacuum fluctuations. Such a formulation allows us to describe induced gravity on an equal footing with the anomaly-induced effective action, in a self-consistent way. We then show that requiring stability of the cosmological constant under loop quantum corrections, Sakharov's induced gravity and Starobinsky's anomaly-induced inflation are either both present or both absent, depending on the particle content of the theory.
Authors:
 [1] ;  [2]
  1. Department of Physics, University of Naples Federico II, Monte Sant'Angelo, Cintia Street, Naples, 80126 (Italy)
  2. Department of Physics, King's College London, University of London, Strand, London, WC2R 2LS (United Kingdom)
Publication Date:
OSTI Identifier:
22369803
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2014; Journal Issue: 01; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ACTION INTEGRAL; CORRECTIONS; COSMOLOGICAL CONSTANT; DEGREES OF FREEDOM; GRAVITATION; SCALARS; STABILITY COSMOLOGICAL INFLATION