Revisiting Scalar Tensor inflation by swampland criteria and Reheating

Brane inflation: swampland criteria, TCC, and reheating predictions

We consider inflation in a five -dimensional space time with the inflaton field confined to live on a brane world. In this scenario, we study different types of potentials for the inflaton, discuss their observational consequences, and compare with data. We find that some class of potentials are in good agreement with observation and that the value of the inflaton field can be sub-Planckian. Moreover, we investigate the swampland criteria in this scenario and determine the consistency of the model with the conjectures. Doing so, we could determine models that simultaneously satisfy both observ…

Reheating After Swampland Conjecture

The evolution of the universe started from a hot and dense Big Bang point. Temperature fluctuation map of cosmic microwave background (CMB) radiation and initial seeds of large scale structures (LSS) are explained by an inflationary period in a very early time. Inflaton as quanta of inflation field is responsible for the accelerated expansion of the universe. Potentials of the self-interacting single field models are constrained by observational data as well as quantum gravity. Some forms of the potential are rolled out by data of Planck satellite and some of them by quantum gravity constraint…

Tsallis全息暴胀在$f(R,T)$引力中的CMB约束、再加热与沼泽地含义

Tsallis holographic inflation in $f(R,T)$ gravity: CMB constraints, reheating, and swampland implications

本研究在$f(R,T)$引力框架下，利用Tsallis全息暗能量密度作为暴胀势，通过CMB数据、沼泽地准则、再加热物理和原初引力波限制，构建了自洽的全息暴胀模型。

Reheating in small-field inflation on the brane: The Swampland Criteria and observational constraints in light of the PLANCK 2018 results

We study cosmological inflation and its dynamics in the framework of the Randall-Sundrum II brane model. In particular, we analyze in detail four representative small-field inflationary potentials, namely Natural inflation, Hilltop inflation, Higgs-like inflation, and Exponential SUSY inflation, each characterized by two mass scales. We constrain the parameters for which a viable inflationary Universe emerges using the latest PLANCK results. Furthermore, we investigate whether or not those models in brane cosmology are consistent with the recently proposed Swampland Criteria, and give predicti…

沼泽地中的Starobinsky暴胀

Starobinsky Inflation in the Swampland

论证Starobinsky暴胀源于轻物种塔量子效应，证明$R^2$项标度须为物种标度$Λ_s$量级，并得出该暴胀位于Swampland中的结论。

Revisiting Barrow's Graduated Inflationary Universe: A Warm perspective

It is presumed that thermal fluctuations present during inflationary epoch can make inflaton scalar field to interact with other fields resulting in the existence of a thermal component during the inflationary period. The presence of this thermal component assists structure formation and reduces reheating dependence as in the contemporary inflationary paradigm. This is known as warm inflation. In 1990 J . D. Barrow \cite{25} considered a scenario of inflation with matter field having a phenomenological equation of state of the type $p+ρ=γρ^λ,~γ\neq 0$ and $λ$ constant. He called such inflation…