论文标题
限制单场通货膨胀的原始黑洞形成
Constraining Primordial Black Hole Formation from Single-Field Inflation
论文作者
论文摘要
原始黑洞最广泛研究的形成机理是单场通货膨胀产生的小尺度上的大幅度扰动的崩溃。在这封信中，我们在第二个慢速参数的急剧过渡的模型中计算了对大规模功率谱的一环校正。我们发现，产生大量原始黑洞的模型会在宇宙微波背景辐射探测的大规模上诱导非扰动耦合。我们的结果表明，小规模的功率谱可以受到大规模宇宙学观察的限制。
The most widely studied formation mechanism of a primordial black hole is collapse of large-amplitude perturbation on small scales generated in single-field inflation. In this Letter, we calculate one-loop correction to the large-scale power spectrum in a model with sharp transition of the second slow-roll parameter. We find that models producing an appreciable amount of primordial black holes induce nonperturbative coupling on a large scale probed by cosmic microwave background radiation. Our result implies that a small-scale power spectrum can be constrained by large-scale cosmological observations.
