Inflationary fluctuations, entropy generation and baryogenesis in a cold universe

J. Ellis, K. Enqvist, D. V. Nanopoulos, K. A. Olive

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Abstract

We study the implications of a generic inflationary model for scenarios of baryogenesis based on the decays of coherent oscillations of squark and slepton fields. We consider the effects of de Sitter fluctuations on the magnitudes of the coherent oscillations of squarks and sleptons. We see that the largest contribution to the entropy density is due to inflaton decays which together with the value of the oscillation amplitude determined by the de Sitter fluctations leads to a baryon to entropy ratio O(10-10). The isothermal density fluctuations produced by the coherent oscillations are found to be negligible compared with the adiabatic fluctuations produced during inflation.

Original languageEnglish (US)
Pages (from-to)343-348
Number of pages6
JournalPhysics Letters B
Volume191
Issue number4
DOIs
StatePublished - Jun 18 1987

Bibliographical note

Funding Information:
The work of KE and DVN was supported in part by DOE grant DE-AC02-76ER0081 and in part by the University of Wisconsin Research Committee with funds granted by the Wisconsin Alumni Research Foundation. The work of KAO was supported in part by DOE grant DE-AC02-83ER-40105.

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