4 papers · 1 filter
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…