منابع مشابه
Exact lattice supersymmetry
We provide an introduction to recent lattice formulations of supersymmetric theories which are invariant under one or more real supersymmetries at nonzero lattice spacing. These include the especially interesting case of N = 4 SYM in four dimensions. We discuss approaches based both on twisted supersymmetry and orbifold-deconstruction techniques and show their equivalence in the case of gauge t...
متن کاملExact Supersymmetry on the Lattice
We discuss the possibility of representing supersymmetry exactly in a lattice discretized system. In particular, we construct a perfect supersymmetric action for the Wess-Zumino model.
متن کاملExact Lattice Supersymmetry at Large N
Employing a novel type of non-commutative product in the Dirac-Kähler twisted superspace on a lattice, we formulate a field theoretically rigid framework of extended supersymmetry on a lattice. As a first example of this treatment, we calculate one-loop (in some cases any loops) quantum corrections for a twisted Wess-Zumino model with N × N hermitian matrix superfields on a two dimensional latt...
متن کاملDirac-Kähler fermions and exact lattice supersymmetry
We discuss a new approach to putting supersymmetric theories on the lattice. The basic idea is to start from a twisted formulation of the underlying supersymmetric theory in which the fermions are represented as grassmann valued antisymmetric tensor fields. The original supersymmetry algebra is replaced by a twisted algebra which contains a scalar nilpotent supercharge Q. Furthermore the action...
متن کاملLattice Super Yang - Mills Theory with Exact Supersymmetry Fumihiko Sugino
We construct two-dimensional N = (2, 2) lattice super Yang-Mills theory, where the gauge and Higgs fields are all represented by U(N) compact variables, with keeping one exact supercharge along the line of the papers [1, 2, 3]. Interestingly, requirements of the exact supersymmetry as well as of the compact gauge and Higgs fields lead to the gauge group U(N) rather than SU(N). As a result of th...
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ژورنال
عنوان ژورنال: Physics Reports
سال: 2009
ISSN: 0370-1573
DOI: 10.1016/j.physrep.2009.09.001