2002/10/03 by Chad Middleton, George Siopsis, Middleton, Chad +1 · 1 citation
Engineering · Physics and Astronomy · #FOS: Physical sciences #Fluid Dynamics Simulations and Interactions #High Energy Physics - Theory (hep-th) #hep-th
paper · pdf · doi:10.48550/arxiv.hep-th/0210033
15 pages, LaTeX; v2: added discussion of pole structure of graviton propagator; deleted discussion of five-dimensional case
openalex publication_date 2002/10/03 · arxiv created 2003/09/02 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study branes residing in infinite volume space and of finite extent in the transverse directions. We calculate the graviton propagator in the harmonic gauge both inside and outside the brane and discuss its dependence on the thickness of the brane. Our treatment includes the full tensor structure of the propagator. We obtain two infinite towers of massive modes and tachyonic ghosts. In the thin-brane limit, we recover four-dimensional Einstein gravity. We compare our results to similar recent results by Dubovsky and Rubakov.