New quasidilaton theory in partially constrained vielbein formalism
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In this work we study the partially constrained vielbein formulation of the new quasidilaton theory of massive gravity, where the quasidilaton field couples to both physical and fiducial metrics simultaneously via a composite effective metric and Lorentz violation is introduced by a constraint on the vielbein. This formalism improves the new quasidilaton model since the Boulware-Deser ghost is removed fully non-linearly at all scales. This also yields crucial implications in the cosmological applications. We derive the governing cosmological background evolution and study the stability of the attractor solution.
|Journal||Journal of Cosmology and Astroparticle Physics|
|Publication status||Published - 25 May 2016|
Final published version, 823 KB, PDF document
Licence: CC BY