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arxiv 2408.04204 v2 pith:KFLAP5GH submitted 2024-08-08 astro-ph.CO gr-qc

Reconciling Early and Late Time Tensions with Reinforcement Learning

classification astro-ph.CO gr-qc
keywords tensionsearlylearningtechniquelatereinforcementtimeaccommodating
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We study the possibility of accommodating both early and late-time tensions using a novel reinforcement learning technique. By applying this technique, we aim to optimize the evolution of the Hubble parameter from recombination to the present epoch, addressing both tensions simultaneously. To maximize the goodness of fit, our learning technique achieves a fit that surpasses even the $\Lambda$CDM model. Our results demonstrate a tendency to weaken both early and late time tensions in a completely model-independent manner.

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  1. Imprint of swampland-inspired coupled early dark energy

    astro-ph.CO 2026-07 conditional novelty 4.0

    A swampland-inspired DM-EDE coupling is tested against DESI DR2 BAO data, showing the EDE potential construction affects late-time dark energy constraints.