Reheating in inflationary cosmologies: Geometric coupling of the ``inflaton'' to quantum fields

Details Reheating in inflationary cosmologies: Geometric coupling of the ``inflaton'' to quantum fields Reheating in inflationary cosmologies: Geometric coupling of the ``inflaton'' to quantum fields

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991phrvd..43.1032d&link_type=abstract

Physical Review D (Particles and Fields), Volume 43, Issue 4, 15 February 1991, pp.1032-1037

Physics

6

Scientific paper

We propose a simple geometrical prescription for coupling a test quantum scalar field to an ``inflaton'' (classical scalar field) in the presence of gravity. When the inflaton stems from the compactification of a Kaluza-Klein theory, the prescription leaves no arbitrariness and amounts to a dimensional reduction of the Klein-Gordon equation. We discuss the possible relevance of this coupling to ``reheating'' in inflationary cosmologies.

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