The theory of Minimal Massive Gravity

6th IF-YITP GR+HEP+Cosmo International Symposium

De Felice, Antonio^1

Center for Gravitational Physics, Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto

606-8502, Japan^1

关键词: A-stable;    Cosmological evolution;    General Relativity;    Homogeneous and isotropic;    Non linear;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/883/1/012009/pdf
DOI  :  10.1088/1742-6596/883/1/012009

来源: IOP

【 摘 要 】

Here we give a short summary of the the theory of minimal massive gravity. This theory, by construction, possesses only two tensor modes, exactly as in General Relativity. This theory is able to reconcile the original background of dRGT - which was proven to possess a ghost - with a stable homogeneous and isotropic cosmological evolution. The theory is constructed by imposing two constraints in a non-linear, background-independent way. The phenomenology of the theory is also briefly discussed.