One Loop Beta Functions in Topologically Massive Gravity
arXiv:1002.2640 · doi:10.1088/0264-9381/27/15/155009
Abstract
We calculate the running of the three coupling constants in cosmological, topologically massive 3d gravity. We find that ν, the dimensionless coefficient of the Chern-Simons term, has vanishing beta function. The flow of the cosmological constant and Newton's constant depends on ν, and for any positive νthere exist both a trivial and a nontrivial fixed point.
44 pages, 16 figures
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