Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-12-17
JHEP 0801:048,2008
Physics
High Energy Physics
High Energy Physics - Theory
15 pages
Scientific paper
10.1088/1126-6708/2008/01/048
We show how to derive the supersymmetric orbifold lattices of Cohen et al. \cite{Cohen:2003xe,Cohen:2003qw} and Kaplan et al. \cite{Kaplan:2005ta} by direct discretization of an appropriate twisted supersymmetric Yang-Mills theory. We examine in detail the four supercharge two dimensional theory and the theory with sixteen supercharges in four dimensions. The continuum limit of the latter theory is the well known Marcus twist of ${\cal N}=4$ Yang-Mills. The lattice models are gauge invariant and possess one exact supersymmetry at non-zero lattice spacing.
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