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Resolution of challenging problems in quantum cosmology with electromagnetic radiation

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arxiv 2207.00727 v1 pith:ZNZQJPAF submitted 2022-07-02 gr-qc hep-thquant-ph

S. Jalalzadeh This is my paper · ORCID
classification gr-qchep-thquant-ph
keywords electromagneticcosmologyproblemsquantumradiationboundarychallengingclosed
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We investigate the quantum cosmology of a closed spatially homogeneous and isotropic Friedmann-Lema\^itre-Robertson-Walker (FLRW) minisuperspace model with electromagnetic radiation as matter content. We solve the corresponding Wheeler-DeWitt equation by utilizing Riemann's zeta function regularization method. We demonstrate that the regularized vacuum energy of the electromagnetic field can overcome factor ordering, boundary conditions, and singularity problems.

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  1. Fractional entropy of the Brown-Kucha\v{r} dust in fractional anti-de Sitter quantum gravity

    gr-qc 2025-01 conditional novelty 5.0 of 10

    In flat AdS quantum cosmology with Brown-Kuchar dust, the fractional Wheeler-DeWitt equation yields mass and entropy spectra scaling as (n+1/2)^(alpha/2), with a fractal mass dimension D = 3 alpha / 2.

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