论文标题
通货膨胀宇宙学中量子重力的预测：Weyl方项的影响
Predictions of quantum gravity in inflationary cosmology: effects of the Weyl-squared term
论文作者
论文摘要
我们在通货膨胀宇宙学中标量和张量波动的幅度和张量波动的幅度和频谱指数得出了量子重力的预测。操作是$ r+r^{2} $加上Weyl -Squared术语。通过将其变成假货来消除幽灵，也就是说是一个纯粹的虚拟粒子。我们遵循De Sitter背景围绕扩展的临近领先顺序。该方法的一致性使假货的质量$ m_ {χ} $相对于offaton的质量$ m_ {ϕ} $，在质量$ m_ {χ} $上放置了下限（$ m_ {χ}> m_ {ϕ}/4 $）。张量表与量表$ r $ $ r $预测在小于数量级的订单范围内（$ 4/3 <n^{2} r <12 $ to $ e $ foldings $ n $）。此外，关系$ r \ simeq -8n_ {t} $不受Weyl平方术语的影响。没有矢量和其他标量/张量的自由度。
We derive the predictions of quantum gravity with fakeons on the amplitudes and spectral indices of the scalar and tensor fluctuations in inflationary cosmology. The action is $R+R^{2}$ plus the Weyl-squared term. The ghost is eliminated by turning it into a fakeon, that is to say a purely virtual particle. We work to the next-to-leading order of the expansion around the de Sitter background. The consistency of the approach puts a lower bound ($ m_{χ}>m_{ϕ}/4$) on the mass $m_{χ}$ of the fakeon with respect to the mass $m_{ϕ}$ of the inflaton. The tensor-to-scalar ratio $r$ is predicted within less than an order of magnitude ($4/3<N^{2}r<12$ to the leading order in the number of $e$-foldings $N$). Moreover, the relation $r\simeq -8n_{T}$ is not affected by the Weyl-squared term. No vector and no other scalar/tensor degree of freedom is present.
