Journal of High Energy Physics

, 2012:122

Boundary terms and junction conditions for generalized scalar-tensor theories

Article

Abstract

We compute the boundary terms and junction conditions for Horndeski’s panoptic class of scalar-tensor theories, and write the bulk and boundary equations of motion in explicitly second order form. We consider a number of special subclasses, including galileon theories, and present the corresponding formulae. Our analysis opens up of the possibility of studying tunnelling between vacua in generalized scalar-tensor theories, and braneworld dynamics. The latter follows because our results are independent of spacetime dimension.

Keywords

Classical Theories of Gravity Cosmology of Theories beyond the SM 

Copyright information

© SISSA, Trieste, Italy 2012

Authors and Affiliations

  1. 1.School of Physics and AstronomyUniversity of NottinghamNottinghamU.K.

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