Proper Time Flow Equation for Gravity

Details Proper Time Flow Equation for Gravity Proper Time Flow Equation for Gravity

2004-10-19

arxiv.org/abs/hep-th/0410191v1

JHEP0502:035,2005

Physics

High Energy Physics

High Energy Physics - Theory

11 pages, revtex4, no figures, bibtex

Scientific paper

10.1088/1126-6708/2005/02/035

We analyze a proper time renormalization group equation for Quantum Einstein Gravity in the Einstein-Hilbert truncation and compare its predictions to those of the conceptually different exact renormalization group equation of the effective average action. We employ a smooth infrared regulator of a special type which is known to give rise to extremely precise critical exponents in scalar theories. We find perfect consistency between the proper time and the average action renormalization group equations. In particular the proper time equation, too, predicts the existence of a non-Gaussian fixed point as it is necessary for the conjectured nonperturbative renormalizability of Quantum Einstein Gravity.

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