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arXiv · 1210.4026

Covariant multi-galileons and their generalisation

Antonio Padilla·Vishagan Sivanesan
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Abstract

We find a covariant completion of the flat-space multi-galileon theory, preserving second-order field equations. We then generalise this to arrive at an enlarged class of second order theories describing multiple scalars and a single tensor, and conjecture that these are a multi-scalar version of Horndeski's most general scalar-tensor theory.

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Antonio Padilla, Vishagan Sivanesan. 2013-07-31. Covariant multi-galileons and their generalisation. https://doi.org/10.1007/jhep04(2013)032

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