Document Type
Article
Date
9-18-2009
Language
English
Disciplines
Physics
Description/Abstract
We provide an introduction to recent lattice formulations of supersymmetric theories which are invariant under one or more real supersymmetries at nonzero lattice spacing. These include the especially interesting case of {\cal N}=4 SYM in four dimensions. We discuss approaches based both on twisted supersymmetry and orbifold-deconstruction techniques and show their equivalence in the case of gauge theories. The presence of an exact supersymmetry reduces and in some cases eliminates the need for fine tuning to achieve a continuum limit invariant under the full supersymmetry of the target theory. We discuss open problems.
Recommended Citation
Catterall, Simon; Kaplan, David B.; and Unsal, Mithat, "Exact Lattice Supersymmetry" (2009). Physics - All Scholarship. 426.
https://surface.syr.edu/phy/426
Source
Harvested from Arxiv.org
Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.
Additional Information
Invited review. 127 pages. Minor corrections added. Version to be published in Physics Reports More information at http://arxiv.org/abs/0903.4881