Domain wall fermions and applications

Domain wall fermions provide a complimentary alternative to traditional lat tice fermion approaches. By introducing an extra dimension, the amount of c hiral symmetry present in the lattice theory can be controlled in a linear way. This results in improved chiral properties as well as robust topologic al zero modes. A brief introduction on the subject and a discussion of chir al properties and applications, such as zero and finite temperature QCD, N = 1 Super Yang-Mills, and four-fermion theories, is presented.