Inflation, modulation and baryogenesis with warm directions

Details Inflation, modulation and baryogenesis with warm directions Inflation, modulation and baryogenesis with warm directions

2010-01-11

arxiv.org/abs/1001.1596v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 4 figures, problems in figures are fixed

Scientific paper

There are many flat directions in SUSY models, which may dissipate their energy and source the radiation background during inflation. However, the only possibility that has been studied in this direction is warm inflation, which uses "warm" (or "dissipative" if we consider more modest situation) direction as the inflaton. In this talk we discuss other significant possibilities of such directions which are dissipative and may or may not be "warm". Affleck-Dine (AD) mechanism and other cosmological scenarios are discussed in the light of "dissipative field", instead of using the conventional light field with mass protection. We sometimes consider Morikawa-Sasaki coefficient for the non-thermal background, which is important because the dissipation calculated for a naive thermal background with $T\to 0$ is not enough to discuss the dissipation with the non-thermal background.

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