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Various Super Yang-Mills Theories with Exact Supersymmetry on the Lattice

Fumihiko Sugino
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Abstract

We continue to construct lattice super Yang-Mills theories along the line discussed in the previous papers \cite{sugino, sugino2}. In our construction of ${\cal N}=2, 4$ theories in four dimensions, the problem of degenerate vacua seen in \cite{sugino} is resolved by extending some fields and soaking up would-be zero-modes in the continuum limit, while in the weak coupling expansion some surplus modes appear both in bosonic and fermionic sectors reflecting the exact supersymmetry. A slight modification to the models is made such that all the surplus modes are eliminated in two- and three-dimensional models obtained by dimensional reduction thereof. ${\cal N}=4, 8$ models in three dimensions need fine-tuning of three and one parameters respectively to obtain the desired continuum theories, while two-dimensional models with ${\cal N}=4, 8$ do not require any fine-tuning.

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Fumihiko Sugino. 2006-06-02. Various Super Yang-Mills Theories with Exact Supersymmetry on the Lattice. https://doi.org/10.1088/1126-6708%2F2005%2F01%2F016

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