The Inflationary Energy Scale

Details The Inflationary Energy Scale The Inflationary Energy Scale

1993-07-12

arxiv.org/abs/astro-ph/9307020v1

Phys.Rev.D49:739-747,1994

Astronomy and Astrophysics

Astrophysics

17 pages (plus three figures, available from the author as hard copies only), standard LaTeX, SUSSEX-AST 93/7-2

Scientific paper

10.1103/PhysRevD.49.739

The energy scale of inflation is of much interest, as it suggests the scale of grand unified physics and also governs whether cosmological events such as topological defect formation can occur after inflation. The COBE results are used to limit the energy scale of inflation at around 60 $e$-foldings from the end of inflation. An exact dynamical treatment based on the Hamilton-Jacobi equations is then used to translate this into limits on the energy scale at the end of inflation. General constraints are given, and then tighter constraints based on physically motivated assumptions regarding the allowed forms of density perturbation and gravitational wave spectra. These are also compared with the values of familiar models.

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