Effective action of a five-dimensional domain wall

Details Effective action of a five-dimensional domain wall Effective action of a five-dimensional domain wall

2008-12-11

arxiv.org/abs/0812.2227v3

JHEP 0905:065,2009

Physics

High Energy Physics

High Energy Physics - Theory

24 pages

Scientific paper

10.1088/1126-6708/2009/05/065

We calculate the four-dimensional low-energy effective action for the perturbations of a two-scalar domain wall model in five dimensions. Comparison of the effective action to the Nambu-Goto action reveals the presence of an additional coupling between the light scalar field and the massless translation mode (branon excitation), which can be written in terms of the curvature scalar of the induced metric. We comment on the impact of this interaction to branon physics.

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