Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2009-06-12
JHEP 0909:083,2009
Physics
High Energy Physics
High Energy Physics - Theory
16 pages; v2: added references, typos corrected
Scientific paper
10.1088/1126-6708/2009/09/083
At a critical ``chiral'' coupling, topologically massive gravity with a negative cosmological constant exhibits several unusual features, including the emergence of a new logarithmic branch of solutions and a linearization instability for certain boundary conditions. I show that at this coupling, the linearized theory may be parametrized by a free scalar field at the Breitenlohner-Freedman bound, and use this description to investigate these features.
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