Hybrid inflation
Jul, 199311 pages
Published in:
- Phys.Rev.D 49 (1994) 748-754
e-Print:
- astro-ph/9307002 [astro-ph]
Report number:
- SU-ITP-93-17
View in:
Citations per year
Abstract: (arXiv)
There exist two classes of inflationary models, which differ by the way inflation ends. The models of the first class describe slow rolling of the inflaton field , which gradually becomes faster and faster. A particular model of this type is chaotic inflation in the theories or . The models of the second class should contain at least two scalar fields, and . They describe a strongly first order phase transition with bubble production, which is triggered by the slow rolling of the field . One of the popular models of this type is the extended inflation scenario. We introduce another class of inflationary models, which have an intermediate position between the slow-rollover and the first-order models. They describe a stage of slow rolling of the field . Then the slowly changing field triggers rapid motion of the field , and the stage of inflation ends instantaneously, without any bubble production. This solves the problem of large bubbles in the first-order scenario. By changing parameters of the models one can interpolate between the slow-rollover scenario and the first-order one.- inflation
- field theory: scalar
- critical phenomena
References(28)
Figures(0)