Long-ranged forces and energy non-conservation in (1+1)-dimensions

Abstract

We consider whether local and causal non-conservation of energy may occur in generally covariant theories with long-ranged fields (analogs of Newton's gravity) whose source is energy--momentum. We find that such a possibility exists in (1+1) dimensions.

9 pages, 2 figures. To appear in Proc. XX Int. Workshop on Fundamental Problems of High Energy Physics and Field Theory, Protvino, June 1997