Low energy effective theory for two branes system
Tetsuya Shiromizu, Kazuya Koyama
TL;DR
This paper derives a low energy effective theory for a two-brane system, modeled as an Einstein-scalar system, enabling analysis of cosmology and non-linear gravity at low energies.
Contribution
It provides a formal derivation of the effective theory using covariant curvature formalism, extending understanding of brane-world cosmology.
Findings
Effective theory resembles Einstein-scalar system
Enables study of low-energy cosmology and gravity
Formal derivation using covariant curvature formalism
Abstract
We derive the low energy effective theory for two branes system solving the bulk geometry formally in the covariant curvature formalism developed by Shiromizu, Maeda and Sasaki. As expected, the effective theory looks like a Einstein-scalar system. Using this theory we can discuss the cosmology and non-linear gravity at low energy scales.
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