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arXiv · 1411.1970

Minimal Massive 3D Gravity Unitarity Redux

Alex S. Arvanitakis·Paul K. Townsend
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Abstract

A geometrical analysis of the bulk and anti-de Sitter boundary unitarity conditions of 3D "Minimal Massive Gravity" (MMG) (which evades the "bulk/boundary clash" of Topologically Massive Gravity) is used to extend and simplify previous results, showing that unitarity selects, up to equivalence, a connected region in parameter space. We also initiate the study of flat-space holography for MMG. Its relevant flat space limit is a deformation of 3D conformal gravity; the deformation is both non-linear and non-conformal, implying a linearisation instability.

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Alex S. Arvanitakis, Paul K. Townsend. 2014-11-07. Minimal Massive 3D Gravity Unitarity Redux. https://doi.org/10.1088/0264-9381/32/8/085003

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