Goldstone's Theorem and Hamiltonian of Multi-galileon Modified Gravity
Nov, 2010Citations per year
Abstract: (arXiv)
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.- 04.50.Kd
- 11.10.Ef
- 11.30.Qc
- gravitation: model
- Goldstone theorem
- Hamiltonian
- Dvali-Gabadadze-Porrati model
- spontaneous symmetry breaking
- membrane model
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