1998/11/10 by Alexander Altland, B D Simons
Physics and Astronomy · #cond-mat #hep-th
paper · pdf · doi:10.1088/0305-4470/32/31/101
published as J.Phys. A32 (1999) L353-L359 · 4 pages, 1 eps figure
arxiv created 1998/11/10 · arxiv updated 2009/11/30
The long-range properties of the random flux model (lattice fermions hopping under the influence of maximally random link disorder) are shown to be described by a supersymmetric field theory of non-linear sigma model type, where the group GL(n|n) is the global invariant manifold. An extension to non-abelian generalizations of this model identifies connections to lattice QCD, Dirac fermions in a random gauge potential, and stochastic non-Hermitian operators.