TOPOLOGICAL CHARGE-DENSITY AROUND STATIC COLOR SOURCES IN LATTICE QCDWITH DYNAMICAL QUARKS

We update our numerical investigation of topological structures around static quarks in pure gauge QCD by results of the first runs includin g dynamical quarks. Simulations were performed on an 8(3) x 4 lattice, with SU(3) Wilson action, with 3 flavours of quarks of equal mass, bo th in the confinement and deconfinement phase. In the confinement phas e we observe indications for the existence of a flux tube between a st atic quark and antiquark, flux-tube breaking for large separations, an d local correlation between the topological charge density and chiral condensate. In the deconfinement phase almost all configurations turn out to be topologically trivial.