paper

Higgs for Graviton: Simple and Elegant Solution

arXiv:1002.3877 · doi:10.1007/JHEP08(2010)011

Abstract

A Higgs mechanism for gravity is presented, where four scalars with global Lorentz symmetry are employed. We show that in the broken symmetry phase a graviton absorbs all scalars and become massive spin 2 particle with five degrees of freedom. The resulting theory is unitary and free of ghosts.

8 pages, References added. The decoupling of ghost state is analyzed in detail.

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