论文标题

Starobinsky通货膨胀后的原始黑洞的形成

Formation of primordial black holes after Starobinsky inflation

论文作者

Frolovsky, Daniel, Ketov, Sergei V., Saburov, Sultan

论文摘要

我们改编了$ f(R)$ GRAVITY的Appleby-Battye-Starobinsky模型,以描述单场模型中最高$ 10^{19} $ G的原始黑洞的双重宇宙通胀和形成。我们发现,有可能增强标量曲率扰动的功率谱,超出鹰(黑洞蒸发)限额为$ 10^{15} $ G,以使原始的黑洞是由于这些大型原始构成的重力崩溃而导致的,这些大型原始构成可以在当前的世界中生存,形成了Cold Cold Deact的一部分。我们的结果与$3σ$内的宇宙微波背景辐射的当前测量值一致,但需要对参数进行微调。

We adapted the Appleby-Battye-Starobinsky model of $F(R)$ gravity towards describing double cosmological inflation and formation of primordial black holes with masses up to $10^{19}$ g in the single-field model. We found that it is possible to get an enhancement of the power spectrum of scalar curvature perturbations to the level beyond the Hawking (black hole evaporation) limit of $10^{15}$ g, so that the primordial black holes resulting from gravitational collapse of those large primordial perturbations can survive in the present universe and form part of cold dark matter. Our results agree with the current measurements of cosmic microwave background radiation within $3σ$ but require fine-tuning of the parameters.

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