|
Abstract
|
In this work, first we examine the energy conditions in the context of the generalized metric-
Palatini hybrid gravity, known as 𝑓 (𝑅, R) gravity. We show that for the proposed model in this
study, i.e. 𝑓 (𝑅, R) = 𝑅 + 𝛼R^𝑛, one of the four fundamental energy conditions, specifically the
strong energy condition, does not hold for some values of 𝑛. Therefore, it seems that hybrid
gravity can provide a model for the accelerated expansion of the universe. In continuation
of completing our study in this work, we try to analyze the impact of hybrid metric-Palatini
gravity on the gravitational baryogenesis process. The hybrid metric-Palatini model combines
two gravitational theories that allow for a more detailed examination of the behavior of space–
time and its interaction with matter. This combination is critical in the early radiation-dominant
universe, where unusual gravitational effects may play a key role in generating baryonic
asymmetry and the production of baryons and anti-baryons.
|