Title

Living on a dS Brane: Effects of KK modes on Inflation

Author(s)/Creator(s)

Scott Watson, Department of Physics, Syracuse University, Syracuse, NY
Claudia De Rham, Dept. of Physics & Astronomy, McMaster University, Hamilton ON

Document Type

Article

Date

2-6-2007

Language

English

Disciplines

Physics

Description/Abstract

We develop a formalism to study non-local higher-dimensional effects in braneworld scenarios from a four-dimensional effective theory point of view and check it against the well-known Garriga-Tanaka result in the appropriate limit. We then use this formalism to study the spectrum of density perturbations during inflation as seen from the lower-dimensional effective theory. In particular, we find that the gravitational potential is greatly enhanced at short wavelengths. The consequences to the curvature perturbations are nonetheless very weak and will lead to no characteristic signatures on the power spectrum.

Additional Information

21 pages, no figures More informaton at http://arxiv.org/abs/hep-th/0702048

Recommended Citation

Watson, Scott and Rham, Claudia De, "Living on a dS Brane: Effects of KK modes on Inflation" (2007). Physics - All Scholarship. 411.
https://surface.syr.edu/phy/411

Source

Harvested from Arxiv.org

Creative Commons License

This work is licensed under a Creative Commons Attribution 3.0 License.