Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2000-02-07
Physics
High Energy Physics
High Energy Physics - Theory
Latex, 13 pages, two figures
Scientific paper
We study singular, supersymmetric domain-wall solutions supported by the massive breathing mode scalars of, for example, sphere reductions in M-theory or string theory. The space-time on one side of such a wall is asymptotic to the Cauchy horizon of the anti-de Sitter (AdS) space-time. However, on the other side there is a naked singularity. The higher-dimensional embedding of these solutions has the novel interpretation of (sphere compactified) brane configurations in the domain ``inside the horizon region,'' with the singularity corresponding to the sphere shrinking to zero volume. The naked singularity is the source of an infinite attractive gravitational potential for the fluctuating modes. Nevertheless, the spectrum is bounded from below, continuous and positive definite, with the wave functions suppressed in the region close to the singularity. The massless bound state is formally excluded due to the boundary condition for the fluctuating mode wave functions at the naked singularity. However, a regularisation of the naked singularity, for example by effects of the order of the inverse string scale, in turn regularises the gravitational potential and allows for precisely one (massless) bound-state spin-2 fluctuating mode. We also contrast spectra in these domain wall backgrounds with those of the domain walls due to the massless modes of sphere reductions.
Cvetic Mirjam
Lu Hai
Pope Christopher N.
No associations
LandOfFree
Localised Gravity in the Singular Domain Wall Background? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Localised Gravity in the Singular Domain Wall Background?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Localised Gravity in the Singular Domain Wall Background? will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-608751