The Chaotic Regime of D-Term Inflation

Bibliographic Details
Title: The Chaotic Regime of D-Term Inflation
Authors: Buchmuller, W., Domcke, V., Schmitz, K.
Source: JCAP11(2014)006
Publication Year: 2014
Collection: Astrophysics
High Energy Physics - Phenomenology
High Energy Physics - Theory
Subject Terms: High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Theory
More Details: We consider D-term inflation for small couplings of the inflaton to matter fields. Standard hybrid inflation then ends at a critical value of the inflaton field that exceeds the Planck mass. During the subsequent waterfall transition the inflaton continues its slow-roll motion, whereas the waterfall field rapidly grows by quantum fluctuations. Beyond the decoherence time, the waterfall field becomes classical and approaches a time-dependent minimum, which is determined by the value of the inflaton field and the self-interaction of the waterfall field. During the final stage of inflation, the effective inflaton potential is essentially quadratic, which leads to the standard predictions of chaotic inflation. The model illustrates how the decay of a false vacuum of GUT-scale energy density can end in a period of `chaotic inflation'.
Comment: 15 pages, 6 figures. v3: matches version published in JCAP
Document Type: Working Paper
DOI: 10.1088/1475-7516/2014/11/006
Access URL: http://arxiv.org/abs/1406.6300
Accession Number: edsarx.1406.6300
Database: arXiv
More Details
DOI:10.1088/1475-7516/2014/11/006