Note on the radion effective potential in the presence of branes

2004/06/30 by Peng Wang, Xin-He Meng
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Particle physics theoretical and experimental studies #gr-qc #hep-ph #hep-th

paper · pdf · doi:10.1103/physrevd.70.087901

published as Phys.Rev. D70 (2004) 087901 · 6 pages, no figures. Some discussion clarified, conclusion unchanged. To appear in Phys. Rev. D

arxiv created 2004/09/12 · openalex publication_date 2004/10/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

In String Theory compactification, branes are often invoked to get the desired form of the radion effective potential. Current popular way of doing this assumes that the introduction of branes will not modify the background geometry in an important way. In this paper, we show by an explicit example that at least in the codimension two case, the gravitational backreaction of the brane cannot be neglected in deriving the radion effective potential. Actually, in this case, the presence of branes will have no effect on the dynamics of radion.

Citations

• Measurements of Ω and Λ from 42 High‐Redshift Supernovae
• Nonlinear multidimensional cosmological models with form fields: Stabilization of extra dimensions and the cosmological constant problem
• Football Shaped Extra Dimensions and the Absence of Self-Tuning
• de Sitter Vacua in String Theory