论文标题

通货膨胀时期的精确确定和重新加热的限制

Precise determination of the inflationary epoch and constraints for reheating

论文作者

German, Gabriel

论文摘要

我们提出了一个简单的公式,该公式允许计算以$ ϕ $表示的通气场的价值,该公式使用$ ϕ $,使用vavenumber模式$ k $。在极端的情况下,瞬时再加热$ ϕ_k $是准确计算的,所有的通货膨胀可观察到的关注数量随后。该公式及其在枢轴刻度的比例因子$ a_p $ a_p $ a_p $ k_p = 0.05/mpc $在放射时代,允许开发一种图解方法来研究宇宙的演变。该方案与通常的分析方法互补,可以获得一些与通货膨胀模型无关的有趣结果。作为在这里开发的思想的具体应用,我们使用Starobinsky的通货膨胀模型进行了一些细节。

We present a simple formula that allows to calculate the value of the inflaton field, denoted by $ϕ$, at the scale with wavenumber mode $k$. In the extreme case of instantaneous reheating $ϕ_k$ is calculated exactly and all inflationary observables and quantities of interest follow. This formula, together with the fact that the scale factor $a_p$ at the pivot scale wavenumber $k_p=0.05/Mpc$ lies in the radiation era, allows the development of a diagrammatic approach to study the evolution of the universe. This scheme is complementary to the usual analytical method and some interesting results, independent of the model of inflation, can be obtained. As a concrete application of the ideas developed here we discuss them with some detail using the Starobinsky model of inflation.

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