A Closer Look at Two $AdS_4$ Branes in an $AdS_5$ Bulk

Details A Closer Look at Two $AdS_4$ Branes in an $AdS_5$ Bulk A Closer Look at Two $AdS_4$ Branes in an $AdS_5$ Bulk

2004-09-17

arxiv.org/abs/hep-th/0409190v1

JHEP0502:034,2005

Physics

High Energy Physics

High Energy Physics - Theory

21 pages, latex

Scientific paper

10.1088/1126-6708/2005/02/034

We investigate a scenario with two $AdS_4$ branes in an $AdS_5$ bulk. In this scenario there are two gravitons and we investigate the role played by each of them for different positions of the second brane. We show that both gravitons play a significant role only when the turn-around point in the warp factor is approximately equidistant from both branes. We find that the ultralight mode becomes heavy as the second brane approaches the turn-around point, and the physics begins to resemble that of the RS model. Thus we demonstrate the crucial role played by the turn-around in the warp factor in enabling the presence of both gravitons.

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