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- W4384268529 abstract "In this letter, we propose a new generalized mass-to-horizon relation to be used in the context of entropic cosmologies and holographic principle scenarios. We show that a general scaling of the mass with the Universe horizon as $M=gamma frac{c^2}{G}L^n$ leads to a new generalized entropy $S_n = gamma frac{n}{1+n}frac{2 pi,k_B,c^3}{G,hbar} L^{n+1}$ from which we can recover many of the recently proposed forms of entropies at cosmological and black hole scales and also establish a thermodynamically consistent relation between each of them and Hawking temperature. We analyse the consequences of introducing this new mass-to-horizon relation on cosmological scales by comparing the corresponding modified Friedmann, acceleration, and continuity equations to cosmological data. We find that when $n=3$, the entropic cosmology model is fully and totally equivalent to the standard $Lambda$CDM model, thus providing a new fundamental support for the origin and the nature of the cosmological constant. In general, if $log gamma < -3$, and irrespective of the value of $n$, we find a very good agreement with the data comparable with $Lambda$CDM from which, in Bayesian terms, our models are indistinguishable." @default.
- W4384268529 created "2023-07-14" @default.
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- W4384268529 date "2023-07-12" @default.
- W4384268529 modified "2023-10-17" @default.
- W4384268529 title "A generalized mass-to-horizon relation: a new global approach to entropic cosmologies and its connection to texorpdfstring{$Lambda$}{Lambda}CDM" @default.
- W4384268529 doi "https://doi.org/10.48550/arxiv.2307.06239" @default.
- W4384268529 hasPublicationYear "2023" @default.
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