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arXiv · hep-th/0304148

Regularization of Brane Induced Gravity

Marko Kolanovic·Massimo Porrati·Jan-Willem Rombouts
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Abstract

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 $r<r_c$, and is due to the exchange of a massive resonant graviton. The crossover scale $r_c$ 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.

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Marko Kolanovic, Massimo Porrati, Jan-Willem Rombouts. 2003-07-23. Regularization of Brane Induced Gravity. https://doi.org/10.1103/physrevd.68.064018

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