Chiral condensate, quark charge and chiral density on the lattice

We study the topological and fermionic vacuum structure of four-dimensional QCD on the lattice by means of correlators of fermionic observables and to pological densities. We show the existence of strong local correlations bet ween the topological charge and monopole density and the quark condensate, charge and chiral density. By analysis of individual gauge configurations, we visualize that instantons (antiinstantons) carry positive (negative) chi rality, whereas the quark charge density fluctuates in sign within instanto ns.