On the addition of torsion to chiral gravity

Details On the addition of torsion to chiral gravity On the addition of torsion to chiral gravity

2011-02-23

arxiv.org/abs/1102.4649v1

Phys.Rev.D83:124032,2011

Physics

High Energy Physics

High Energy Physics - Theory

25 pages

Scientific paper

10.1103/PhysRevD.83.124032

Three-dimensional gravity in Anti-de Sitter space is considered, including torsion. The derivation of the central charges of the algebra that generates the asymptotic isometry group of the theory is reviewed, and a special point of the theory, at which one of the central charges vanishes, is compared with the chiral point of topologically massive gravity. This special point corresponds to a singular point in Chern-Simons theory, where one of the two coupling constants of the SL(2,R) actions vanishes. A prescription to approach this point in the space of parameters is discussed, and the canonical structure of the theory is analyzed.

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