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Unified dynamical system formulations for gravity with applications to nonminimal derivative coupling and -Higgs inflation
Saikat Chakraborty, Sergio E. Jorás, Alberto Saa
Two different dynamical system formulations are presented that can be implemented to analyze a rather large class of modified gravity theories within the generic family.…
Thermodynamics of Theories
Sergio E. Jorás
This series of three lectures was presented at ``Escola de Cosmologia e Gravitação" \url{https://cosmosecontexto.org.br/ecg-inscricoes} and webcast at \url{https://shorturl.at/2ZSI…
Parametric Resonance in the Einstein frame: the Jordan-frame Doppelgänger
Karim H. Seleim, Richa Arya, Sergio E. Jorás
Modified theories of gravity have been investigated for quite a long time in the literature as a possible explanation for the inflationary period of the universe. The corres…
Compact stars in scalar-tensor theories with a single-well potential and the corresponding theory
Juan M. Z. Pretel, Sergio E. Jorás, Ribamar R. R. Reis +2
The macroscopic properties of compact stars in modified gravity theories can be significantly different from the general relativistic (GR) predictions. Within the gravitational con…
Thermodynamics of Gravity: The Double Well Potential Case
C. D. Peralta, S. E. Jorás
In this work we further extend the analysis of theories of gravity in the metric formalism under the approach of a Thermodynamics analogy, proposed in arXiv:1911.04830v3. He…