Abstract
We establish and develop a correspondence between certain crystal bases (Kashiwara crystals) and the Coulomb branch of three-dimensional \U0001d4a9 = 4 gauge theories. The result holds for simply-laced, non-simply laced and affine quivers. Two equivalent derivations are given in the non-simply laced case, either by application of the axiomatic rules or by folding a simply-laced quiver. We also study the effect of turning on real masses and the ensuing simplification of the crystal. We present a multitude of explicit examples of the equivalence. Finally, we put forward a correspondence between infinite crystals and Hilbert spaces of theories with isolated vacua.
Highlights
Quantum field theories with supersymmetry have been a staple of research in fundamental Physics for more than half a century
We study the effect of turning on real masses and the ensuing simplification of the crystal
We present a multitude of explicit examples of the equivalence
Summary
Quantum field theories with supersymmetry have been a staple of research in fundamental Physics for more than half a century. In our use of Kashiwara crystals, we have relied considerably on the recent presentation by Bump and Schilling [35] where, based on the results of Kashiwara, and on the later work by Stembridge [36], an axiomatic combinatorial approach to the construction of crystal bases associated to quantum-deformed enveloping algebras of finite-dimensional Lie algebras is developed. This approach can be of significant advantage when there is already a background or familiarity with the combinatorics of Young tableaux, such as in the construction of the irreducible representations of the symmetric and general linear groups, by means of such tableaux.
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