According to the AdS4/CFT3 correspondence, N=2 supersymmetric Chern-Simons matter theories should have a stable fixed point in the infrared. In order to support this prediction we study RG flows of two-level Chern-Simons matter theories with/without flavors induced by the most general marginal superpotential compatible with N=2 supersymmetry. At two loops we determine the complete spectrum of fixed points and study their IR stability. Our analysis covers a large class of models including perturbations of the ABJM/ABJ theories with and without flavors, N=2,3 theories with different CS levels corresponding to turning on a Romans mass and beta-deformations. In all cases we find curves (or surfaces) of fixed points which are globally IR stable but locally unstable in the following sense: The system has only one direction of stability which in the ABJM case coincides with the maximal global symmetry preserving perturbation, whereas along any other direction it flows to a different fixed point on the surface. The question of conformal invariance vs. finiteness is also addressed: While in general vanishing beta-functions imply two-loop finiteness, we find a particular set of flavored theories where this is no longer true.

Bianchi, M., Penati, S., Siani, M. (2010). Infrared stability of $ mathcal{N} = 2 $ Chern-Simons matter theories. JOURNAL OF HIGH ENERGY PHYSICS, 2010(5), 1-29 [10.1007/JHEP05(2010)106].

Infrared stability of $ mathcal{N} = 2 $ Chern-Simons matter theories

BIANCHI, MARCO STEFANO;PENATI, SILVIA;SIANI, MASSIMO VINCENZO DUILIO
2010

Abstract

According to the AdS4/CFT3 correspondence, N=2 supersymmetric Chern-Simons matter theories should have a stable fixed point in the infrared. In order to support this prediction we study RG flows of two-level Chern-Simons matter theories with/without flavors induced by the most general marginal superpotential compatible with N=2 supersymmetry. At two loops we determine the complete spectrum of fixed points and study their IR stability. Our analysis covers a large class of models including perturbations of the ABJM/ABJ theories with and without flavors, N=2,3 theories with different CS levels corresponding to turning on a Romans mass and beta-deformations. In all cases we find curves (or surfaces) of fixed points which are globally IR stable but locally unstable in the following sense: The system has only one direction of stability which in the ABJM case coincides with the maximal global symmetry preserving perturbation, whereas along any other direction it flows to a different fixed point on the surface. The question of conformal invariance vs. finiteness is also addressed: While in general vanishing beta-functions imply two-loop finiteness, we find a particular set of flavored theories where this is no longer true.
Articolo in rivista - Articolo scientifico
Chern-Simons theories; Extended supersymmetry; Field theories in lower dimensions;
English
1
29
Bianchi, M., Penati, S., Siani, M. (2010). Infrared stability of $ mathcal{N} = 2 $ Chern-Simons matter theories. JOURNAL OF HIGH ENERGY PHYSICS, 2010(5), 1-29 [10.1007/JHEP05(2010)106].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/18417
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