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arXiv · 1109.3450

Galileons on Cosmological Backgrounds

Garrett Goon·Kurt Hinterbichler·Mark Trodden
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Abstract

We construct four-dimensional effective field theories of a generalized DBI galileon field, the dynamics of which naturally take place on a Friedmann-Robertson-Walker spacetime. The theories are invariant under non-linear symmetry transformations, which can be thought of as being inherited from five-dimensional bulk Killing symmetries via the probe brane technique through which they are constructed. The resulting model provides a framework in which to explore the cosmological role that galileons may play as the universe evolves.

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Garrett Goon, Kurt Hinterbichler, Mark Trodden. 2011-09-15. Galileons on Cosmological Backgrounds. https://doi.org/10.1088/1475-7516%2F2011%2F12%2F004

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