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On the addition of torsion to chiral gravity | | Ricardo Couso Santamaria
; Jose D. Edelstein
; Alan Garbarz
; Gaston Giribet
; | | Date: |
23 Feb 2011 | | Abstract: | 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. | | Source: | arXiv, 1102.4649 | | Services: | Forum | Review | PDF | Favorites | |
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