We derive lattice actions for Yang-Mills quantum mechanics for models with \cQ=4, 8 and 16 supercharges which possess an exact supersymmetry at non-zero lattice spacing. These are obtained by dimensional reduction of twisted versions of the corresponding super Yang-Mills theories in D=2, 3 and 4 dimensions.
Catterall, Simon and Joseph, Anosh, "Lattice Actions for Yang-Mills Quantum Mechanics with Exact Supersymmetry" (2008). Physics. 448.
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