Quark dynamics and flux tube structure in qqbar bound states

Abstract

I discuss the bound state quark dynamics focusing on the nonperturbative interaction and the flux tube structure.

Comments: 20 pages, Latex, worldsci.sty, 10 Figures. Plenary talk given at the 3rd International Conference on Quark Confinement and the Hadron Spectrum (ConfinementIII), Jefferson Lab, USA, June 7-12, 1998; corrected some typos