Generic predictions for primordial perturbations and their implications

IF 4.3 2区 物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS Physics Letters B Pub Date : 2024-08-13 DOI:10.1016/j.physletb.2024.138956
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Abstract

We introduce a novel framework for studying small-scale primordial perturbations and their cosmological implications. The framework uses a deep reinforcement learning to generate scalar power spectrum profiles that are consistent with current observational constraints. The framework is shown to predict the abundance of primordial black holes and the production of secondary induced gravitational waves. We demonstrate that the set up under consideration is capable of generating predictions that are beyond the traditional model-based approaches.

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原始扰动的一般预测及其影响
我们介绍了一个研究小尺度原始扰动及其宇宙学影响的新框架。该框架利用深度强化学习来生成与当前观测约束相一致的标量功率谱剖面。研究表明,该框架可以预测原始黑洞的丰度和二次诱导引力波的产生。我们证明了所考虑的设置能够产生超越传统基于模型方法的预测结果。
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来源期刊
Physics Letters B
Physics Letters B 物理-物理:综合
CiteScore
9.10
自引率
6.80%
发文量
647
审稿时长
3 months
期刊介绍: Physics Letters B ensures the rapid publication of important new results in particle physics, nuclear physics and cosmology. Specialized editors are responsible for contributions in experimental nuclear physics, theoretical nuclear physics, experimental high-energy physics, theoretical high-energy physics, and astrophysics.
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