Spinodal Instability and Confinement

Abstract

It is pointed out that inhomogeneous condensates or spinodal instabilities suppress the propagation of elementary excitations due to the absorptive zero mode dynamics. This mechanism is shown to be present in the scalar phi4 model and in Quantum Gravity. It is conjectured that the plane waves states of color charges have vanishing scattering amplitude owing to the color condensate in the vacuum.Comment: Talk presented at the Workshop GRIBOV-75, Budapest, May 2005, 12 page