Curvature perturbation and waterfall dynamics in hybrid inflation

作者: Hassan Firouzjahi , Ali Akbar Abolhasani , Ali Akbar Abolhasani , Misao Sasaki , Misao Sasaki

DOI: 10.1088/1475-7516/2011/10/015

关键词:

摘要: We investigate the parameter spaces of hybrid inflation model with special attention paid to dynamics waterfall field and curvature perturbations induced from its quantum fluctuations. Depending on inflaton value at time phase transition sharpness can have multiple extended stages. find that for models mild perturbation is too large satisfy COBE normalization. space where fluctuations vary between results standard obtained here.

参考文章(35)
Ali Akbar Abolhasani, Hassan Firouzjahi, No large scale curvature perturbations during the waterfall phase transition of hybrid inflation Physical Review D. ,vol. 83, pp. 063513- ,(2011) , 10.1103/PHYSREVD.83.063513
Laurence Perreault Levasseur, Guillaume Laporte, Robert Brandenberger, Analytical study of mode coupling in hybrid inflation Physical Review D. ,vol. 82, pp. 123524- ,(2010) , 10.1103/PHYSREVD.82.123524
David Polarski, A.A. Starobinsky, Spectra of Perturbations Produced by Double Inflation with an Intermediate Matter-Dominated Stage Nuclear Physics. ,vol. 385, pp. 623- 650 ,(1992) , 10.1016/0550-3213(92)90062-G
David H. Lyth, Issues concerning the waterfall of hybrid inflation arXiv: Cosmology and Nongalactic Astrophysics. ,(2010) , 10.1143/PTPS.190.107
David Polarski, A. A. Starobinsky, Isocurvature perturbations in multiple inflationary models. Physical Review D. ,vol. 50, pp. 6123- 6129 ,(1994) , 10.1103/PHYSREVD.50.6123
Neil Barnaby, James M. Cline, Non-Gaussian and nonscale-invariant perturbations from tachyonic preheating in hybrid inflation Physical Review D. ,vol. 73, pp. 106012- ,(2006) , 10.1103/PHYSREVD.73.106012
Andreas Albrecht, Paul J. Steinhardt, Cosmology for Grand Unified Theories with Radiatively Induced Symmetry Breaking Physical Review Letters. ,vol. 48, pp. 1220- 1223 ,(1982) , 10.1103/PHYSREVLETT.48.1220
Lisa Randall, Marin Soljačić, Alan H. Guth, Supernatural inflation: inflation from supersymmetry with no (very) small parameters Nuclear Physics. ,vol. 472, pp. 377- 405 ,(1996) , 10.1016/0550-3213(96)00174-5
Andrew R. Liddle, David Parkinson, Samuel M. Leach, Pia Mukherjee, WMAP normalization of inflationary cosmologies Physical Review D. ,vol. 74, pp. 083512- ,(2006) , 10.1103/PHYSREVD.74.083512