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arXiv · 2501.02759

Holographic inflation and holographic dark energy from entropy of the anti-de Sitter black hole

Qihong Huang·He Huang·Bing Xu·Kaituo Zhang
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Abstract

Based on the entropy of anti-de Sitter black hole, a new holographic dark energy model has been proposed. When the Hubble horizon and particle horizon are chosen as the IR cutoff, the late-time accelerated expansion of universe is realized. In this paper, we consider the Hubble horizon as the IR cutoff to investigate holographic inflation and slow-roll inflation in this model. We find that slow-roll inflation with the chaotic potential $V_{0}ϕ^{n}$ is favored by Planck results for some special cases, such as $n=1/3$ and $n=1/2$, while holographic inflation is not supported by Planck results. Then, we analyze the reheating temperature and the number of reheating e-folds in this model, and we find that the results favor the cases $n=1/3$ and $n=1/2$. Finally, we use the dynamical analysis method, statefinder diagnostic pairs, and the Hubble diagram to analyze this model. Our results indicate that when $b^{2}$ takes a small value, this model cannot be distinguished from the standard $Λ$CDM model and can serve as an alternative to it.

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Qihong Huang, He Huang, Bing Xu, Kaituo Zhang. 2025-02-14. Holographic inflation and holographic dark energy from entropy of the anti-de Sitter black hole. https://doi.org/10.1140/epjc%2Fs10052-025-14113-0

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