2003/04/30 by Marko Kolanovic, Marko Kolanović, Massimo Porrati +1 · 4 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #hep-th
paper · pdf · doi:10.1103/physrevd.68.064018
published as Phys.Rev. D68 (2003) 064018 · One reference added. To appear in PRD. 20 pages, 3 figures
arxiv created 2003/07/23 · openalex publication_date 2003/09/24 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the regularization of theories of ``brane induced'' gravity in codimension N>1. The brane can be interpreted as a thin dielectric with a large dielectric constant, embedded in a higher dimensional space. The kinetic term for the higher dimensional graviton is enhanced over the brane. A four dimensional gravitation is found on the brane at distances smaller than a critical distance r<rc, and is due to the exchange of a massive resonant graviton. The crossover scale rc is determined by the mass of the resonance. The suppression of the couplings of light Kaluza-Klein modes to brane matter results in a higher dimensional force law at large distances. We show that the resulting theory is free of ghosts or tachyons.