http://arxiv.org/abs/2305.01607
In this paper we study the viability of an entropic cosmological model. The effects of entropic gravity are derived from a modified entropy-area relationship with a volumetric entropy term. This model describes a late time limit {cosmic acceleration}, whose origin is related to a volumetric term in the entropy. Moreover, we analyze the phenomenological implications of the entropic model using the Supernovae {\it Pantheon} compilation and the observational Hubble parameter data to find consistency with cosmological observations. Finally, we show the equivalence between the entropic model and a brane world cosmological model, by means of an effective geometrical construction.
J. Chagoya, I. Díaz-Saldaña, J. López-Domínguez, et. al.
Wed, 3 May 23
52/67
Comments: 10 pages, 3 figures