Higgs for Graviton: Simple and Elegant Solution

Published 22 Feb 2010 in hep-th and gr-qc | (1002.3877v2)

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.

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