Dynamics of Perturbations in Gurzadyan-Xue Cosmological Models
Perturbation theory within Newtonian approximation is presented for cosmological models with time-varying physical constants. Analytical solutions for perturbations dynamics are obtained for each Gurzadyan-Xue model with pressureless matter and radiation. It is found that perturbations grow during the entire expansion within GX models, including the curvature- and vacuum-dominated stage when they cease to grow in the standard cosmological model.
International Journal of Modern Physics D
- Pub Date:
- Particle-theory and field-theory models of the early Universe;
- General Relativity and Quantum Cosmology
- Int. J. Mod. Phys. D17 (2008) 203