BRST and Anti BRST structure of a topological current algebra
Bani Mitra Sodermark
Abstract
The BRST structure of a current satisfying a non abelian affine algebra in two dimensions was studied by Isidro and Ramallo and an N=2 Superconformal Algebra was obtained. In this paper, we study the total BRST and anti BRST structure of the topological algebra. We end up with an N=4 Superconformal algebra in which the central charge drops out of most of the OPE's. The price one has to pay is that the no. of operators proliferates tremendously and the algebra becomes infinite dimensional.
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