Domain Walls in Strongly Coupled Theories

Details Domain Walls in Strongly Coupled Theories Domain Walls in Strongly Coupled Theories

1996-12-11

arxiv.org/abs/hep-th/9612128v2

Phys.Lett. B396 (1997) 64-69; Erratum-ibid. B407 (1997) 452

Physics

High Energy Physics

High Energy Physics - Theory

Several typos corrected

Scientific paper

10.1016/S0370-2693(97)00808-3

Domain walls in strongly coupled gauge theories are discussed. A general mechanism is suggested automatically leading to massless gauge bosons localized on the wall. In one of the models considered, outside the wall the theory is in the non-Abelian confining phase, while inside the wall it is in the Abelian Coulomb phase. Confining property of the non-Abelian theories is a key ingredient of the mechanism which may be of practical use in the context of the dynamic compactification scenarios. In supersymmetric (N=1) Yang-Mills theories the energy density of the wall can be exactly calculated in the strong coupling regime. This calculation presents a further example of non-trivial physical quantities that can be found exactly by exploiting specific properties of supersymmetry. A key observation is the fact that the wall in this theory is a BPS-saturated state.

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