论文标题
改良超级实质性的原始黑洞
Primordial black holes from modified supergravity
论文作者
论文摘要
改良的超级实力方法用于描述Starobinsky膨胀后原始黑洞（PBH）的形成。我们的方法自然会导致两个（标量） - 场吸引子型双重通胀，其第一阶段是由Scalaron驱动的，其第二阶段是由另一个属于超级强度多重的标量场驱动的。标量电势和动力学项被得出，研究了真空，并研究了这两个标量的通货膨胀动力学。我们从数值上计算功率谱，并发现超慢滚动机制导致标量功率谱的增强（峰值）。这导致了PBH的有效形成。我们估计PBH的质量，并发现它们的密度分数（作为暗物质的一部分）。我们表明，我们修改的超级重力模型与通货膨胀可观察物一致，而他们预测PBH质量在$ 10^{16} $ g和$ 10^{20} $ g之间。从这个意义上讲，修改后的超级实力为解释和统一通货膨胀和PBHS暗物质的起源提供了一种自然的自上而下方法。
The modified supergravity approach is applied to describe a formation of Primordial Black Holes (PBHs) after Starobinsky inflation. Our approach naturally leads to the two-(scalar)-field attractor-type double inflation, whose first stage is driven by scalaron and whose second stage is driven by another scalar field which belongs to a supergravity multiplet. The scalar potential and the kinetic terms are derived, the vacua are studied, and the inflationary dynamics of those two scalars is investigated. We numerically compute the power spectra and we find the ultra-slow-roll regime leading to an enhancement (peak) in the scalar power spectrum. This leads to an efficient formation of PBHs. We estimate the masses of PBHs and we find their density fraction (as part of Dark Matter). We show that our modified supergravity models are in agreement with inflationary observables, while they predict the PBH masses in a range between $10^{16}$ g and $10^{20}$ g. In this sense, modified supergravity provides a natural top-down approach for explaining and unifying the origin of inflation and the PBHs Dark Matter.
