Good IR duals of bad quiver theories

A bstract 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...

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Bibliographic Details
Published in:The journal of high energy physics 2018-05, Vol.2018 (5), p.1-17, Article 114
Main Authors: Dey, Anindya, Koroteev, Peter
Format: Article
Language:English
Subjects:
Classical and Quantum Gravitation
Classification
Elementary Particles
Extended Supersymmetry
Gauge theory
High energy physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
String Duality
String Theory
Superstring Vacua
Supersymmetric Gauge Theory
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Summary:A bstract 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.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP05(2018)114