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Generic Predictions for Primordial Perturbations and their implications

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arxiv 2401.11142 v2 pith:R7LMBRLB submitted 2024-01-20 astro-ph.CO gr-qc

classification astro-ph.COgr-qc
keywords frameworkprimordialimplicationsperturbationspredictionsabundanceapproachesbeyond
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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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  1. Non-Standard Thermal History and Formation of Primordial Black Holes in Einstein-Gauss-Bonnet Gravity

    gr-qc 2025-01 conditional novelty 5.0 of 10

    A tuned Einstein-Gauss-Bonnet inflation model can create primordial black holes from asteroid-sized to tens of solar masses and secondary gravitational waves, with abundances that change dramatically in a stiff post-i...

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