Chiral Disorder and Diffusion in The QCD Vacuum

Abstract

In this talk, which popularizes some of our recent work, we provide novel insights into the bulk properties of light chiral quarks in a fixed Euclidean volume (e.g. lattice QCD). We show that the spontaneous breakdown of chiral symmetry results into diffusing quarks with a vacuum diffusion constant $D=2F_{\ddot{I}}{€}^2/|<\bar{q}q>|$ $\approx 0.22$ fm, in striking analogy to diffusing electrons in disordered metals in one-, two- and three-dimensions.

4 pages with 1 EPS figure and style file. Talk given by M.A. Nowak at Rencontres de Moriond 1999 (QCD and High Energy Hadronic Interactions), Les Arcs, France, March 20-27, 1999