Long-wavelength Cosmological Perturbation in the Universe with Multiple Perfect Fluids

Abstract

We investigate the large scale cosmological perturbation in the Universe with multiple perfect fluids. Using the long-wavelength approximation with Hamilton-Jacobi method, we derive the formula for the gauge invariant comoving curvature perturbation. As an application of our approach, we examine the large scale perturbation in a brane cosmology.

to be published in CQG

Cited by in corpus (4)

• Second-order Perturbations of the Friedmann World Model
• Large-scale curvature and entropy perturbations for multiple interacting fluids
• Adiabatic and entropy perturbations with interacting fluids and fields
• Cosmological perturbations for imperfect fluids