搜索结果: 1-4 共查到“天体物理学 non-Gaussianities”相关记录4条 . 查询时间(0.097 秒)
Inflationary non-Gaussianities in the most general second-order scalar-tensor theories
Inflationary non-Gaussianities in the most general second-order scalar-tensor theories
2011/10/14
For very general scalar-field theories in which the equations of motion are at second-order, we evaluate the three-point correlation function of primordial scalar perturbations generated during inflat...
Curvature Perturbations and non-Gaussianities from Waterfall Phase Transition during Inflation
Curvature Perturbations non-Gaussianities
2011/1/13
We consider a variant of hybrid inflation where the waterfall phase transition happens during inflation. By adjusting the parameters associated with the mass of the waterfall field, we arrange that t...
Non-gaussianities and the Stimulated creation of quanta in the inflationary universe
Non-gaussianities the Stimulated creation
2011/1/11
Cosmological inflation generates a spectrum of density perturbations that can seed the cosmic structures we observe today. These perturbations are usually computed as the result of the gravitationally...
Inflation in Entropic Cosmology: Primordial Perturbations and non-Gaussianities
Inflation Primordial Perturbations non-Gaussianities
2010/11/16
We investigate thermal inflation in double-screen entropic cosmology. We find that its realization is general, resulting from the system evolution from non-equilibrium to equilibrium. Furthermore,goin...