TL;DR
This paper introduces a lattice formulation for certain supersymmetric gauge theories, including N=4 super Yang-Mills, that preserves some supersymmetry exactly, reducing fine-tuning needs.
Contribution
It presents a novel lattice method inspired by deconstruction that maintains part of the supersymmetry exactly in discretized supersymmetric gauge theories.
Findings
Part of the supersymmetry is realized exactly on the lattice.
The method reduces or eliminates the need for fine tuning.
Applicable to N=4 super Yang-Mills and similar theories.
Abstract
A method is proposed for latticizing a class of supersymmetric gauge theories, including N=4 super Yang-Mills. The technique is inspired by recent work on ``deconstruction''. Part of the target theory's supersymmetry is realized exactly on the lattice, reducing or eliminating the need for fine tuning. (Talk based on the paper "Supersymmetry on a Spatial Lattice", hep-lat/0206019, by D.B.K., Emmanuel Katz and Mithat Unsal).
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