Critical solutions in topologically gauged N=8 CFTs in three dimensions

Abstract

In this paper we discuss some special (critical) background solutions that arise in topological gauged $\mathcal{N}=8$ three-dimensional CFTs with SO(N) gauge group. These solutions solve the TMG equations (containing the parameters $\mu$ and $l$) for a certain set of values of $\mu l$ obtained by varying the number of scalar fields with a VEV. Apart from Minkowski, chiral round $Ad{S}_3$ and null-warped $Ad{S}_3$ (or Schrödinger(z=2)) we identify also a more exotic solution recently found in $TMG$ by Ertl, Grumiller and Johansson. We also discuss the spectrum, symmetry breaking pattern and the supermultiplet structure in the various backgrounds and argue that some properties are due to their common origin in a conformal phase. Some of the scalar fields, including all higgsed ones, turn out to satisfy three-dimensional singleton field equations. Finally, we note that topologically gauged $\mathcal{N}=6$ ABJ(M) theories have a similar, but more restricted, set of background solutions.

34 pages, v2: minor corrections, note about a new solution added in final section, v3: two footnotes added

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• The Third way to 3D Supersymmetric Massive Yang-Mills Theory
• A Review of Third Way Consistent Theories
• Towards an exact frame formulation of conformal higher spins in three dimensions
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