论文标题
充气电位的特征和宇宙学扰动的功率谱
Features of the inflaton potential and the power spectrum of cosmological perturbations
论文作者
论文摘要
我们讨论了充气电位的特征，这些特征可能会导致曲率扰动的功率谱增强。我们表明，电势的急剧下降可通过几个数量级诱导频谱的增强，这可能会导致原始黑洞的产生。相同的特征还可以在通过标量扰动下在二阶通过标量扰动产生的引力波中产生独特的振荡模式。我们研究了几种此类功能的加性效果。我们分析了简化的潜力，但也讨论了对超级实力模型的可能应用。
We discuss features of the inflaton potential that can lead to a strong enhancement of the power spectrum of curvature perturbations. We show that a steep decrease of the potential induces an enhancement of the spectrum by several orders of magnitude, which may lead to the production of primordial black holes. The same feature can also create a distinctive oscillatory pattern in the spectrum of gravitational waves generated through the scalar perturbations at second order. We study the additive effect of several such features. We analyse a simplified potential, but also discuss the possible application to supergravity models.
