Various super Yang-Mills theories with exact supersymmetry on the lattice

Oct, 2004
29 pages
Published in:
  • JHEP 01 (2005) 016
e-Print:
Report number:
  • OIQP-04-2

Citations per year

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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 N=2,4{\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. N=4,8{\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 N=4,8{\cal N}=4, 8 do not require any fine-tuning.
  • LATTICE QUANTUM FIELD THEORY
  • LATTICE GAUGE FIELD THEORIES
  • EXTENDED SUPERSYMMETRY
  • TOPOLOGICAL FIELD THEORIES
  • gauge field theory: SU(N)
  • supersymmetry
  • lattice field theory
  • dimensional reduction
  • dimension: 2-4
  • vacuum state