论文标题
通货膨胀期间的原始黑洞和引力波。
Primordial black holes and gravitational waves from resonant amplification during inflation
论文作者
论文摘要
我们介绍了原始黑洞的共鸣产生的新实现，以及在两个阶段通胀模型中的引力波，该模型由标量场组成，该模型由标量场组成，其中一个轴突 - 单型 - 单型型的周期性结构在控制第一阶段的潜力和另一个领域χWITH的电位上的潜力中，该电位χWiththe Hilltop的潜力占据了第二阶段。第一阶段的周期性结构播种的参数共振会放大哈勃半径内两个磁场的扰动。尽管背景轨迹的演变会随着振荡屏障高度的增加而经历转弯，但χRemain的放大扰动是它们的扰动，并有助于最终的曲率扰动。事实证明，原始功率谱在小尺度上显示出显着的谐振峰，这可能导致原始黑洞的大量产生。此外，在通货膨胀期间，引力波还来自增强的场扰动，其幅度可能受到未来重力波干涉仪的约束。
We present a new realization of the resonant production of primordial black holes as well as gravitational waves in a two-stage inflation model consisting of a scalar field ϕwith an axion-monodromy-like periodic structure in the potential that governs the first stage and another field χwith a hilltop-like potential that dominates the second stage. The parametric resonance seeded by the periodic structure at the first stage amplifies the perturbations of both fields inside the Hubble radius. While the evolution of the background trajectory experiences a turn as the oscillatory barrier height increases, the amplified perturbations of χremain as they are and contribute to the final curvature perturbation. It turns out that the primordial power spectrum displays a significant resonant peak on small scales, which can lead to an abundant production of primordial black holes. Furthermore, gravitational waves are also generated from the resonantly enhanced field perturbations during inflation, the amplitude of which may be constrained by future gravitational wave interferometers.
