On scale-free extensions of massive (bi-)gravity
We discuss a scale-free model of bigravity, in which the mass parameter of the standard bigravity potential is promoted to a dynamical scalar field. This modification retains the ghost-free bigravity structure, in particular it remains free of the Boulware- Deser ghost. We investigate the theory...
| Main Authors: | , , |
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| Format: | Journal article |
| Published: |
Springer Verlag
2017
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