论文标题
高斯通货膨胀中预热引力的重力波
Gravitational Waves from Preheating in Gauss-Bonnet Inflation
论文作者
论文摘要
我们在通货膨胀后的第一阶段研究了不断扩展的宇宙中的重力波产生，并研究了高斯 - 尼特期限对具有GB耦合项的幂律通货膨胀模型的通货膨胀参数的后果。 Moreover, we perform the analyses on the preheating parameters involving the number of e-folds $N_{pre}$, and the temperature of thermalization $T_{th},$ and show that it's sensitive to the parameters $n$, and $γ$, the parameter $γ$ is proposed to connect the density energy at the end of inflation to the preheating energy density.我们将重力波能密度光谱与光谱指数$ n_ {s} $相关，由宇宙微波背景实验$。$密度谱$ω_{gw} $显示出良好的观察，$γ= 10^{3} $ 10^{3} $和$ 10^{6} $。我们的发现表明，预热过程中引力波（GWS）的产生可以满足普朗克数据的约束。
We study gravitational wave production in an expanding Universe during the first stages following inflation, and investigate the consequences of the Gauss-Bonnet term on the inflationary parameters for a power-law inflation model with a GB coupling term. Moreover, we perform the analyses on the preheating parameters involving the number of e-folds $N_{pre}$, and the temperature of thermalization $T_{th},$ and show that it's sensitive to the parameters $n$, and $γ$, the parameter $γ$ is proposed to connect the density energy at the end of inflation to the preheating energy density. We set a correlation of gravitational wave energy density spectrum with the spectral index $n_{s}$ detected by the cosmic microwave background experiments$.$ The density spectrum $Ω_{gw}$ shows good consistency with observation for $γ= 10^{3}$ and $10^{6}$. Our findings suggest that the generation of gravitational waves (GWs) during preheating can satisfy the constraints from Planck's data.
