Randall-Sundrum Brane Tensions
M. Cvetic, M.J. Duff, James T. Liu, H. Lu, C.N. Pope, K.S. Stelle
TL;DR
This paper analyzes the energy-momentum sources in the Randall-Sundrum brane world within type IIB supergravity, revealing a composite structure that resolves tension sign discrepancies and clarifies supersymmetry compatibility.
Contribution
It identifies the detailed composition of the brane tension sources, showing they consist of a D3-brane and a spacetime patching contribution, resolving previous sign and supersymmetry issues.
Findings
The brane sources are composed of a D3-brane and spacetime patching contributions.
This composition explains the tension sign discrepancy.
The results reconcile supersymmetry with the RS tension signs.
Abstract
We show that the singular sources in the energy-momentum tensor for the Randall-Sundrum brane world, viewed as a solution of type IIB supergravity, are composed of two elements. One of these is a D3-brane source with tension opposite in sign to the RS tension in five dimensions; the other arises from patching two regions of flat ten-dimensional spacetime. This resolves an apparent discrepancy between supersymmetry and the sign and magnitude of the RS tension.
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