Two-dimensional ${\cal N} = (2, 2)$ Lattice Gauge Theories with Matter in Higher Representations
arXiv:1403.4390 · doi:10.1007/JHEP07(2014)067
Abstract
We construct two-dimensional ${\cal N} = (2, 2)$ supersymmetric gauge theories on a Euclidean spacetime lattice with matter in the two-index symmetric and anti-symmetric representations of SU($N_c$) color group. These lattice theories preserve a subset of the supercharges exact at finite lattice spacing. The method of topological twisting is used to construct such theories in the continuum and then the geometric discretization scheme is used to formulate them on the lattice. The lattice theories obtained this way are gauge-invariant, free from fermion doubling problem and exact supersymmetric at finite lattice spacing. We hope that these lattice constructions further motivate the nonperturbative explorations of models inspired by technicolor, orbifolding and orientifolding in string theories and the Corrigan-Ramond limit.
16 pages, 1 figure. v2: New section on fine tuning added. Slight modification in abstract. Version matches with the one accepted for publication