Solutions of massive gravity theories in constant scalar invariant geometries
arXiv:1302.6250 · doi:10.1088/0264-9381/30/14/145014
Abstract
We solve massive gravity field equations in the framework of locally homogenous and vanishing scalar invariant (VSI) Lorentzian spacetimes, which in three dimensions are the building blocks of constant scalar invariant (CSI) spacetimes. At first, we provide an exhaustive list of all Lorentzian three-dimensional homogeneous spaces and then we determine the Petrov type of the relevant curvature tensors. Among these geometries we determine for which values of their structure constants they are solutions of the field equations of massive gravity theories with cosmological constant. The homogeneous solutions founded are of all various Petrov types : I_C, I_R, II, III, D_t, D_s, N, O; the VSI geometries which we found are of Petrov type III. The Petrov types II and III are new explicit CSI spacetimes solutions of these types. We also examine the conditions under which the obtained anti-de Sitter solutions are free of tachyonic massive graviton modes.
v3: Latex, 42 pages, 4 figures; fixed typos and added sentences
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