Wednesday, February 6, 2013

1302.0868 (R. Percacci et al.)

Beta Functions of Topologically Massive Supergravity    [PDF]

R. Percacci, M. J. Perry, C. N. Pope, E. Sezgin
We compute the one-loop beta functions of the cosmological constant, Newton's constant and the topological mass in topologically massive supergravity in three dimensions. We use a variant of the proper time method supplemented by a simple choice of cutoff function. We find that the dimensionless coefficient of the Chern-Simons term, $\nu$, has vanishing beta function. The flow of the cosmological constant and Newton's constant depends on $\nu$; we study analytically the structure of the flow and its fixed points in the limits of small and large $\nu$.
View original: http://arxiv.org/abs/1302.0868

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