Inflation and reheating in induced-gravity models

Details Inflation and reheating in induced-gravity models Inflation and reheating in induced-gravity models

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990phrvd..41.2398b&link_type=abstract

Physical Review D (Particles and Fields), Volume 41, Issue 8, 15 April 1990, pp.2398-2407

Physics

8

Scientific paper

The Planck mass is generated dynamically in induced-gravity models, typically being related to the vacuum expectation value of a scalar field φ, ɛ1/2<φ>=MPl/ √8π , where ɛ is a dimensionless parameter, typically smaller than one. We discuss in this paper the decay of the φ particle, which is mainly into gravitons, and the consequences this has for models in which the φ field is responsible for inflation. We show in particular that too much energy is stored in φ oscillations and adequate reheating does not occur.

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