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The strong coupling effect and auxiliary fields in the DGP-model

Mikhail N. Smolyakov
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Abstract

The DGP-model with additional terms in the action is considered. These terms have a special form and include auxiliary scalar fields without kinetic terms, which are non-minimally coupled to gravity. The use of these fields allows one to exclude the mode, which corresponds to the strong coupling effect, from the theory. Effective four-dimensional theory on the brane appears to be the same, as in the original DGP-model.

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Mikhail N. Smolyakov. 2005-06-02. The strong coupling effect and auxiliary fields in the DGP-model. https://doi.org/10.1103/physrevd.72.084010

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