### Abstract

We show how to derive Catterall's supersymmetric lattice gauge theories directly from the general principle of orbifolding followed by a variant of the usual deconstruction. These theories are forced to be complexified due to a clash between charge assignments under U(1)-symmetries and lattice assignments in terms of scalar, vector and tensor components for the fermions. Other prescriptions for how to discretize the theory follow automatically by orbifolding and deconstruction. We find that Catterall's complexified model for the two-dimensional N = (2,2) theory has two independent preserved supersymmetries. We comment on consistent truncations to lattice theories without this complexification and with the correct continuum limit. The construction of lattice theories this way is general, and can be used to derive new supersymmetric lattice theories through the orbifolding procedure. As an example, we apply the prescription to topologically twisted four-dimensional N = 2 supersymmetric Yang-Mills theory. We show that a consistent truncation is closely related to the lattice formulation previously given by Sugino.

Original language | English |
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Journal | Journal of High Energy Physics |

Volume | 2007 |

Issue number | 8 |

DOIs | |

Publication status | Published - 2007 Aug 1 |

Externally published | Yes |

### Keywords

- Extended supersymmetry
- Lattice gauge field theories
- Lattice quantum field theory
- Matrix models

### ASJC Scopus subject areas

- Nuclear and High Energy Physics