Robel Arenas

activity

20192026

most citedSpherically symmetric and static solutions in

f (R)

gravity coupled with EM fields

9 citations · 11 across the 4 of their papers we have counts for

collaborators

4 papers

gr-qc2026

Microscopic Origin of Bekenstein-Hawking Entropy in $(2 + 1)$ Gravity: A Thermo Field Dynamics Approach

W. A. Rojas C., J. R. Arenas S

We compute the entanglement entropy of a real massive scalar field near a non-rotating BTZ black hole using Thermo Field Dynamics. Modeling the black hole as a collapsing dust shel…

gr-qc2020★ 2 cited

Hypergeometric viable models in $f (R)$ gravity

Roger Hurtado, Robel Arenas

A cosmologically viable hypergeometric model in the modified gravity theory $f (R)$ is found from the need for asintoticity towards $Λ$ CDM, the existence of an inflection point in t…

gr-qc2020★ 9 cited

Spherically symmetric and static solutions in $f (R)$ gravity coupled with EM fields

Roger A. Hurtado, Jose R. Arenas

Solutions of field equations in $f (R)$ gravity are found for a spherically symmetric and static spacetime in the Born-Infeld (BI) non-linear electrodynamics. It is found that the m…

gr-qc2019

Scalar-field potential for viable models in $f (R)$ theory

Roger A. Hurtado, Robel Arenas

The $f (R)$ theory of gravity can be expressed as a scalar tensor theory with a scalar degree of freedom $ϕ$ . By a conformal transformation, the action and its Gibbons-York-Hawking…

Microscopic Origin of Bekenstein-Hawking Entropy in (2+1) Gravity: A Thermo Field Dynamics Approach

Hypergeometric viable models in f(R) gravity

Spherically symmetric and static solutions in f(R) gravity coupled with EM fields

Scalar-field potential for viable models in f(R) theory

Microscopic Origin of Bekenstein-Hawking Entropy in $(2 + 1)$ Gravity: A Thermo Field Dynamics Approach

Hypergeometric viable models in $f (R)$ gravity

Spherically symmetric and static solutions in $f (R)$ gravity coupled with EM fields

Scalar-field potential for viable models in $f (R)$ theory