Gauge Theory of Diff S^1 and Loop Groups

抄録

We argue that at the pie-confinement level the fundamental dynamical principle underlying the string field theory must be the gauge invariance of the Virasoro-Kac-Moody symmetry associated with P × G, where P is the Poincare group and G is the grand unification group, which exists among the string excitation modes. In an attempt to construct a field theory of string we present a prototype gauge theory of the Virasoro-Kac-Moody group. The theory allows a straightforward supersymmetric generalization.