Domain Walls with Localised Gravity and Domain-Wall/QFT Correspondence

Details Domain Walls with Localised Gravity and Domain-Wall/QFT Correspondence Domain Walls with Localised Gravity and Domain-Wall/QFT Correspondence

2000-07-26

arxiv.org/abs/hep-th/0007209v3

Phys.Rev.D63:086004,2001

Physics

High Energy Physics

High Energy Physics - Theory

plain latex, 25 pages, typos corrected

Scientific paper

10.1103/PhysRevD.63.086004

We review general domain-wall solutions supported by a delta-function source, together with a single pure exponential scalar potential in supergravity. These scalar potentials arise from a sphere reduction in M-theory or string theory. There are several examples of flat (BPS) domain walls that lead to a localisation of gravity on the brane, and for these we obtain the form of the corrections to Newtonian gravity. These solutions are lifted back on certain internal spheres to D=11 and D=10 as M-branes and D-branes. We find that the domain walls that can trap gravity yield M-branes or Dp-branes that have a natural decoupling limit, i.e. p\le 5, with the delta-function source providing an ultra-violet cut-off in a dual quantum field theory. This suggests that the localisation of gravity can generally be realised within a Domain-wall/QFT correspondence, with the delta-function domain-wall source providing a cut-off from the space-time boundary for these domain-wall solutions. We also discuss the form of the one-loop corrections to the graviton propagator from the boundary QFT that would reproduce the corrections to the Newtonian gravity on the domain wall.

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