Good IR duals of bad quiver theories
Abstract
The infrared dynamics of generic 3d N = 4 bad theories (as per the good-bad-ugly classification of Gaiotto and Witten) are poorly understood. Examples of such theories with a single unitary gauge group and fundamental flavors have been studied recently, and the low energy effective theory around some special point in the Coulomb branch was shown to have a description in terms of a good theory and a certain number of free hypermultiplets. A classification of possible infrared fixed points for bad theories by Bashkirov, based on unitarity constraints and superconformal symmetry, suggest a much richer set of possibilities for the IR behavior, although explicit examples were not known. In this note, we present a specific example of a bad quiver gauge theory which admits a good IR description on a sublocus of its Coulomb branch. The good description, in question, consists of two decoupled quiver gauge theories with no free hypermultiplets.
- Publication:
-
Journal of High Energy Physics
- Pub Date:
- May 2018
- DOI:
- 10.1007/JHEP05(2018)114
- arXiv:
- arXiv:1712.06068
- Bibcode:
- 2018JHEP...05..114D
- Keywords:
-
- Extended Supersymmetry;
- String Duality;
- Superstring Vacua;
- Supersymmetric Gauge Theory;
- High Energy Physics - Theory;
- Mathematical Physics
- E-Print:
- 20 pages, 3 figures. Discussion of the Coulomb branch singularities is further extended