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. © 2012 SISSA.
CITATION STYLE
Padilla, A., & Sivanesan, V. (2012). Boundary terms and junction conditions for generalized scalar-tensor theories. Journal of High Energy Physics, 2012(8). https://doi.org/10.1007/JHEP08(2012)122
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