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Some aspects of inflationary scenario in the modified f(𝕋,𝒯 ) gravity

Ines G. Salako, Etienne Baffou, R. D. Boko

2023International Journal of Geometric Methods in Modern Physics12 citationsDOI

Abstract

Inflationary cosmology was the subject of an investigation in the [Formula: see text] gravity context, for which [Formula: see text] stands for the torsion scalar while [Formula: see text] is the trace of the energy–momentum tensor using three different class of inflation potentials well known in the literature. In order to find the range of geometry-matter coupling parameter to describe cosmological inflation scenario, we determined the slow-roll parameters and predict the scalar spectral index [Formula: see text], the tensor to scalar ratio [Formula: see text] and tensor spectral index [Formula: see text] in function in inflation potential parameters. The results show that the range of geometry-matter coupling parameter found is in agreement with the PLANCK 2018 data and WMAP data.

Topics & Concepts

PhysicsCMB cold spotSpectral indexMathematical physicsCosmologyInflation (cosmology)PlanckScalar (mathematics)Tensor (intrinsic definition)Theoretical physicsStress–energy tensorScalar fieldCosmic microwave backgroundQuantum mechanicsGeometryExact solutions in general relativitySpectral lineMathematicsAnisotropyCosmology and Gravitation TheoriesBlack Holes and Theoretical PhysicsSolar and Space Plasma Dynamics
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