5 papers
Static Black Holes and Iyer-Wald Entropy in Gravity
I. Díaz-Saldaña, J. López-Domínguez, Wilfredo Yupanqui +2
We investigate static, spherically symmetric black hole solutions in a class of higher-curvature gravitational theories described by a Lagrangian that depends on the Ricci and Kret…
Observational constraints on entropic cosmology
Javier Chagoya, I. Díaz-Saldaña, Mario H. Amante +2
In this work, we derive a generalized modified Friedmann equation based on an entropy-area relation that incorporates established modifications, such as volumetric, linear, and log…
On the entropy of a stealth vector-tensor black hole
Javier Chagoya, I. Díaz-Saldaña, J. C. López-Domínguez +1
We apply Wald's formalism to a Lagrangian within generalised Proca gravity that admits a Schwarzschild black hole with a non-trivial vector field. The resulting entropy differs fro…
On the Generalized Uncertainty Principle and Cosmology
Oscar López-Aguayo, J. C. López-Domínguez, M. Sabido
In this work we study the effects of the generalized uncertainty principle (GUP) in cosmology. We start with the Friedmann-Robertson-Walker (FRW) model endowed with a scalar field.…
Cosmic acceleration in entropic cosmology
Javier Chagoya, I. Díaz-Saldaña, J. C. López-Domínguez +1
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 entr…