Hr. Christiansen, Topological contributions to fermionic correlators and nonperturbative aspects of QCD in two dimensions, INT J MOD P, 14(9), 1999, pp. 1379-1387
We analyze the formation of fermionic condensates in two-dimensional quantu
m chromodynamics for matter in the fundamental representation of the gauge
group. We show that a topological regular instanton background is crucial i
n order to obtain nontrivial correlators. We discuss both massless and mass
ive cases.