Open AccessPre-inflation dynamical behavior of warm inflation in loop quantum cosmology
Author(s) -
Kui Xiao,
Sheng-Qin Wang
Publication year - 2020
Publication title -
modern physics letters a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.49
H-Index - 88
eISSN - 1793-6632
pISSN - 0217-7323
DOI - 10.1142/s0217732320502934
Subject(s) - physics , inflation (cosmology) , dissipative system , loop quantum cosmology , cosmology , quantum , theoretical physics , eternal inflation , quantum cosmology , mathematical physics , quantum mechanics , inflaton , quantum gravity
Considering a constant dissipative coefficient [Formula: see text], the pre-inflation dynamical behaviors of warm inflation in the loop quantum cosmology scenario are discussed. We consider three sets of initial conditions. The evolution of the background can always be divided into three phases, namely super-inflation, damping, and slow-roll inflation phases, with the duration of each phase depending on the initial conditions. As an example, we compare the background evolution between [Formula: see text] and [Formula: see text] under special initial conditions and find that there is no slow-roll inflation phase for [Formula: see text] while the number of e-folds is about 60.209 for [Formula: see text].