SO(3) massive gravity

Chunshan Lin

SO(3) massive gravity

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arxiv 1305.2069 v4 pith:NW6OU2YC submitted 2013-05-09 hep-th astro-ph.COgr-qc

Chunshan Lin This is my paper · ORCID

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keywords instabilityfieldsgravitymassiveanalysisconfigurationconstructedcosmological

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In this paper, we propose a massive gravity theory with 5 degrees of freedom. The mass term is constructed by 3 Stuckelberg scalar fields, which respects SO(3) symmetry in the fields' configuration. By the analysis on the linear cosmological perturbations, we found that such 5 d.o.f are free from ghost instability, gradiant instability, and tachyonic instability.

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Stable Cosmology from Minimal Theory of Mass-Varying Massive Gravity
gr-qc 2025-07 reject novelty 6.0 of 10

MTMVMG is claimed to admit stable FLRW perturbations, with the mass-varying scalar as dark energy or inflaton, but stability inequalities are unverified and the phenomenology is fitted.

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