Bent Domain Walls as Braneworlds

Details Bent Domain Walls as Braneworlds Bent Domain Walls as Braneworlds

1999-05-27

arxiv.org/abs/hep-th/9905210v3

Phys.Rev. D60 (1999) 123506

Physics

High Energy Physics

High Energy Physics - Theory

26 pages, latex, no figures, corrected few typos, as accepted for publication in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.60.123506

We consider domain walls embedded in curved backgrounds as an approximation for braneworld scenarios. We give a large class of new exact solutions, exhausting the possibilities for describing one and two walls for the cases where the curvature of both the bulk and the wall is locally constant. In the case of two walls, we find solutions where each wall has positive tension. An interesting property of these solutions is that the curvature of the walls can be much smaller than the tension, leading to a significant cancellation of the effective cosmological constant, which however is still much larger than the observational limits. We further discuss some aspects of inflation in models based on wall solutions.

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