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Effective theory for close limit of two branes
Tetsuya Shiromizu, Kazuya Koyama, Keitaro Takahashi
We discuss the effective theory for the close limit of two branes in a covariant way. To do so we solve the five dimensional Einstein equation along the direction of the extra dime…
Low energy effective theory for two branes system
Tetsuya Shiromizu, Kazuya Koyama
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…
Cosmology with Radion and Bulk Scalar Field in Two Branes Model
Shinpei Kobayashi, Kazuya Koyama
We investigate cosmological evolutions of the bulk scalar field and the radion in five-dimensional dilatonic two branes model. The bulk potential for the scalar field…
Radion and Large Scale Anisotropy on the Brane
Kazuya Koyama
We investigate the effect of the radion on cosmological perturbations in the brane world. The S^1/Z_2 compactified 5D Anti-de Sitter spacetime bounded by positive and negative tens…