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arXiv · 1407.1264

Matter coupling in 3D "Minimal Massive Gravity"

Alex S. Arvanitakis·Alasdair J. Routh·Paul K. Townsend
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Abstract

The "Minimal Massive Gravity" (MMG) model of massive gravity in three spacetime dimensions (which has the same anti-de Sitter (AdS) bulk properties as "Topologically Massive Gravity" but improved boundary properties) is coupled to matter. Consistency requires a particular matter source tensor, which is quadratic in the stress tensor. The consequences are explored for an ideal fluid in the context of asymptotically de-Sitter (dS) cosmological solutions, which bounce smoothly from contraction to expansion. Various vacuum solutions are also found, including warped-(A)dS, and (for special values of parameters) static black holes and an (A)dS2 x S1 vacuum.

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Alex S. Arvanitakis, Alasdair J. Routh, Paul K. Townsend. 2014-07-04. Matter coupling in 3D "Minimal Massive Gravity". https://doi.org/10.1088/0264-9381/31/23/235012

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