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Second order brane cosmology with radion stabilization

G. L. Alberghi·D. Bombardelli·R. Casadio·A. Tronconi
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Abstract

We study cosmology in the five-dimensional Randall-Sundrum brane-world with a stabilizing effective potential for the radion and matter localized on the branes. The analysis is performed by employing a perturbative expansion in the ratio rho/V between the matter energy density on the branes and the brane tensions around the static Randall-Sundrum solution (which has rho=0 and brane tensions +-V). This approach ensures that the matter evolves adiabatically and allows us to find approximate solutions to second order in ρ/V. Some particular cases are then analyzed in details.

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G. L. Alberghi, D. Bombardelli, R. Casadio, A. Tronconi. 2005-06-16. Second order brane cosmology with radion stabilization. https://doi.org/10.1103/physrevd.72.025005

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