Cosmic Acceleration in a Model of Interacting Massive Gravitons

We propose an alternative understanding of gravity resulting from the extension of N.Wu’s gauge theory of gravity with massive gravitons, which are minimally coupled to general relativity. Based on this, we derive the equations of state for massive gravitons. We study the dynamics of these massive gravitons in a flat, homogeneous and isotropic Friedmann-Robertson-Walker (FRW) universe. We calculate the critical points of the massive graviton dark energy and background perfect fluid. These calculations may have crucial implications for the massive gravitons and dark energy theories. They could, therefore, have important repercussions for current cosmological problems.