Abelian Current Algebra and the Virasoro Algebra on the Lattice
arXiv:hep-th/9307048 · doi:10.1016/0370-2693(93)91618-W
Abstract
We describe how a natural lattice analogue of the abelian current algebra combined with free discrete time dynamics gives rise to the lattice Virasoro algebra and corresponding hierarchy of conservation laws.
11 pages, LATEX, HU-TFT-93-29