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arXiv · 1011.0863

Goldstone's Theorem and Hamiltonian of Multi-galileon Modified Gravity

Shuang-Yong Zhou
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Abstract

The galileon model was recently proposed to locally describe a class of modified gravity theories, including the braneworld DGP model. We discuss spontaneous symmetry breaking of the self-accelerating branch in a multi-galileon theory with internal global symmetries. We show a modified version of Goldstone's theorem is applicable to the symmetry breaking pattern and discuss its implications. We also derive the Hamiltonian of a general multi-galileon theory and discuss its implications.

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BibTeXRIS

Shuang-Yong Zhou. 2010-11-03. Goldstone's Theorem and Hamiltonian of Multi-galileon Modified Gravity. https://doi.org/10.1103/physrevd.83.064005

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