One-loop graviton corrections to the curvature perturbation from inflation
One-loop graviton corrections to the curvature perturbation from inflation
复制标题
对暴胀引起的曲率扰动的单环引力子修正
DOI：
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复制
发表时间：
2008
期刊：
影响因子：
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通讯作者：
N. Bartolo
中科院分区：
文献类型：
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作者：
E. Dimastrogiovanni;N. Bartolo
我们计算了由引力子和膨胀子相互作用引起的单场慢滚膨胀中曲率摄动的功率谱的单环修正。计算了引力子对暴胀场功率谱的量子修正，并通过δN形式在超视界尺度上得到了它们对曲率摄动的影响。我们指出来自张量模态的单环修正与来自标量自相互作用的修正具有相同的幅度；因此，在自洽计算中不能忽略它们。
We compute one-loop corrections to the power spectrum of the curvature perturbation in single-field slow-roll inflation arising from gravitons and inflaton interactions. The quantum corrections due to gravitons to the power spectrum of the inflaton field are computed around the time of horizon crossing and their effect on the curvature perturbation is obtained on superhorizon scales through the δN formalism. We point out that one-loop corrections from the tensor modes are of the same magnitude as those coming from scalar self-interactions; therefore they cannot be neglected in a self-consistent calculation.
影响因子：
5
作者：
Arroja F
通讯作者：
Arroja F