Towards a string representation of infrared SU(2) Yang-Mills theory

Abstract

We employ a heat kernel expansion to derive an effective action that describes four dimensional SU(2) Yang-Mills theory in the infrared limit. Our result supports the proposal that at large distances the theory is approximated by the dynamics of knotted string-like fluxtubes which appear as solitons in the effective theory.

Comments: 4 pages, no figure, RevTex