The properties of primordial curvature perturbations on small scales are still unknown while those on large scales have been well probed by the observations of the cosmic microwave background anisotropies and the large scale structure. In this paper, we propose the reconstruction method of primordial curvature perturbations on small scales through the merger rate of binary primordial black holes, which could form from large primordial curvature perturbation on small scales.

中文翻译：

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从原始黑洞双星并合率重建曲率摄动的原始功率谱

小尺度的原始曲率扰动的性质尚不清楚，而大尺度的原始曲率扰动的性质已通过宇宙微波背景各向异性和大尺度结构的观测得到很好的探测。在本文中，我们提出了通过双原初黑洞合并率的小尺度原初曲率扰动重建方法，该方法可以由小尺度上的大原初曲率扰动形成。