Cosmological model with time varying deceleration parameter in <i>F(R, G)</i> gravity
Santosh V. Lohakare, S. K. Tripathy, B. Mishra
Abstract
Abstract In this paper, we study the dynamical behaviour of the Universe in the F ( R , G ) theory of gravity, where R and G respectively denote the Ricci scalar and Gauss-Bonnet invariant. Our wide analysis encompasses the energy conditions, cosmographic parameters, Om ( z ) diagnostic, stability and the viability of reconstructing the referred model through a scalar field formalism. The model obtained here shows the quintessence like behaviour at late times.
Topics & Concepts
QuintessencePhysicsMathematical physicsf(R) gravityScalar curvatureScalar fieldFormalism (music)Deceleration parameterDark energyCosmological modelScalar (mathematics)GravitationCosmologyTheoretical physicsClassical mechanicsAstrophysicsMathematicsQuantum mechanicsGeometryQuantum gravityCurvatureArtQuantumVisual artsMusicalCosmology and Gravitation TheoriesBlack Holes and Theoretical PhysicsAdvanced Differential Geometry Research