The 2nd order renormalization group flow for non-linear sigma models in 2 dimensions

Details The 2nd order renormalization group flow for non-linear sigma models in 2 dimensions The 2nd order renormalization group flow for non-linear sigma models in 2 dimensions

2009-04-07

arxiv.org/abs/0904.1241v1

Class. Quantum Grav. 26 (2009) 105020 (8pp)

Physics

High Energy Physics

High Energy Physics - Theory

Scientific paper

10.1088/0264-9381/26/10/105020

We show that for two dimensional manifolds M with negative Euler characteristic there exists subsets of the space of smooth Riemannian metrics which are invariant and either parabolic or backwards-parabolic for the 2nd order RG flow. We also show that solutions exists globally on these sets. Finally, we establish the existence of an eternal solution that has both a UV and IR limit, and passes through regions where the flow is parabolic and backwards-parabolic.

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