Cosmological dynamics of a class of non-minimally coupled models of gravity

2016/11/20 by R. P. L. Azevedo, Azevedo, R. P. L., Jorge Páramos +1
Earth and Planetary Sciences · Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #Geophysics and Gravity Measurements

paper · pdf · doi:10.48550/arxiv.1611.06606

openalex publication_date 2016/11/20 · openalex created_date 2016/11/30 · openalex updated_date 2026/07/28

Abstract

In this work a new non-minimally coupled model is presented, where a generic function f(R) of the scalar curvature factors the usual Einstein-Hilbert action functional, motivated by relevant results obtained from similar models. Its cosmological dynamics are derived and the possibility of attaining a phase of accelerated expansion is assessed. To further probe the possible implications of the model, a dynamical system formulation is established, and used to assess the scenarios where f(R) assumes a power-law or exponential form.

Related

• Cosmological dynamics in the theory of gravity both with non-minimal and non-minimal derivative coupling
• Cosmological dynamical systems of non-minimally coupled fluids and scalar fields
• Cosmological models with arbitrary spatial curvature in the theory of gravity with non-minimal derivative coupling
• Dynamical analysis of cosmological models in non-minimal scalar non-metricity gravity
• Dynamics of Non-minimally Coupled Scalar Fields in the Jordan Frame