Dilaton Gravity Coupled to a Nonlinear Sigma Model in $2+ε$ Dimensions

Details Dilaton Gravity Coupled to a Nonlinear Sigma Model in $2+ε$ Dimensions Dilaton Gravity Coupled to a Nonlinear Sigma Model in $2+ε$ Dimensions

1995-05-23

arxiv.org/abs/hep-th/9505132v1

Mod. Phys. Lett. A10 (1995) 2391

Physics

High Energy Physics

High Energy Physics - Theory

12 pages, LaTeX

Scientific paper

Quantum theory of dilaton gravity coupled to a nonlinear sigma model with a maximally symmetric target space is studied in $2+\epsilon$ dimensions. The ultraviolet stable fixed point for the curvature of the nonlinear sigma model demands a new fixed point theory for the dilaton coupling function. The fixed point of the dilaton coupling is a saddle point similarly to the previous case of the flat target space.

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