1997/05/05 by R. G. Moorhouse, Moorhouse, R. G., A. B. Henriques +4
Economics, Econometrics and Finance · Physics and Astronomy · #Astrophysics (astro-ph) #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #Stochastic processes and financial applications #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/9705016
18 pages, 1 Postscript figure
arxiv created 1997/05/05 · openalex publication_date 1997/05/05 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We formulate a gradual dynamical transition from a power-law inflation era with a scalar field to a radiation era with no scalar field including inhomogeneous perturbations to the Friedmann- Robertson-Walker universe. We show that for the cosmic microwave background radiation fluctuations this is excellently approximated by a sudden transition, with application of the Lichnerowicz conditions, both for density and gravitational wave perturbations.