Higgs for Graviton: Simple and Elegant Solution

Feb, 2010
7 pages
Published in:
  • JHEP 08 (2010) 011
e-Print:

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Abstract: (arXiv)
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.
Note:
  • 8 pages, References added. The decoupling of ghost state is analyzed in detail.
  • Spontaneous Symmetry Breaking
  • Classical Theories of Gravity
  • Space-Time Symmetries
  • gravitation
  • Higgs mechanism
  • metric
  • symmetry breaking
  • diffeomorphism: invariance