Published on:

2 August 2023

Primary Category:

General Relativity and Quantum Cosmology

Paper Authors:

M. Sharif,

Tayyab Naseer

•

Applies gravitational decoupling to extend isotropic to anisotropic matter in modified gravity

•

Studies impact of coupling and anisotropy on cosmological evolution

•

Obtains stable solutions in radiation era; other eras unstable

•

Coupling and anisotropy directly impact pressure and density

•

Validates solutions by checking energy conditions and stability

Key findings on coupling matter and geometry in cosmology

This paper develops cosmological solutions in a theory coupling matter and geometry. It applies a technique called gravitational decoupling to extend an isotropic matter distribution into an anisotropic one. This allows study of the universe's evolution, analyzing effects of the coupling and anisotropy. The radiation-dominated era is shown to be stable with this coupling.

Interacting spinor and electromagnetic fields in early Universe

Dynamics of anisotropic spacetimes in symmetric teleparallel gravity

Anisotropic solutions in R-squared gravity with a scalar field

Complexity in coupled gravity theory

Perturbations in anisotropic universe models with evolving dark energy

Thermodynamics of anisotropic universes in scalar-tensor gravity

No comments yet, be the first to start the conversation...

Sign up to comment on this paper