WebbWe compute the primordial curvature spectrum generated during warm inflation, including shear viscous effects. The primordial spectrum is dominated by the thermal fluctuations of the radiation bath, sourced by the diss… Webb29 juni 2024 · For the slow-roll approximation the scalar field behaves as an effective dark energy. The form of the potential is clearly unknown and many different potentials have been studied and confronted with observations. These two regimes of accelerated expansion are treated independently.

Title: Formalising the Slow-Roll Approximation in Inflation

Webb14 aug. 2024 · In this framework and assuming the slow-roll approximation, a possible methodology for the reconstruction of inflation is the parametrization of these cosmological quantities or parameters in terms of the number of e- folds N. Webb3 apr. 2014 · the slow-roll approximation and in ligh t of the data from BICEP2. Along the wa y, w e find general consistency relations at which observ ables are sub ject if the … granny mccarthy\\u0027s tea room

A study on inflation with a single-field potential in slow-roll

Webb1 okt. 2024 · Slow roll inflation requires that the effective inflaton mass should be much smaller than the Hubble parameter during inflation, that is m2 ≪ H2. However, when we try to build an inflation model in the framework of string theory or supergravity, one often encounter an Hubble induced inflaton mass, that is m2 ∼ H2[1], [2]. Webb26 okt. 2000 · Inflationary predictions for the anisotropy of the cosmic microwave background radiation are often based on the slow-roll approximation. We study the … Webbbe neglected in the equation of motion, which then takes the slow-rolling form for homogeneous fields: 3Hφ˙ = −dV/dφ. (147) In combination with Friedmann’s equation in … chino valley fire district human resources