Agegraphic dark energy from entropy of the anti-de Sitter black hole
arXiv:2509.00297 · doi:10.3390/universe11100336
Abstract
In this paper, we analyze the agegraphic dark energy from the entropy of the anti-de Sitter black hole using the age of the universe as the IR cutoff. We constrain its parameter with the Pantheon+ Type Ia supernova sample and observational Hubble parameter data, finding that the Akaike Information Criterion cannot effectively distinguish this model from the standard CDM model. The present value of Hubble constant and the model parameter are constrained to and . This model realizes the whole evolution of the universe, including the late-time accelerated expansion. Although it asymptotically approaches the standard CDM model in the future, statefinder analysis shows that late-time deviations allow the two models to be distinguished.
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