Affiliation:
1. Institute of Physics, University of Tokyo, Komaba, Meguro-ku, Tokyo 153, Japan
Abstract
Algebraic characterization of 2-dimensional topological conformal field theories (TCFT’s) is proposed and some of its consequences are studied. In particular, we find two kinds of novel closed algebras, both of which are non-trivial extensions of the twisted version of the N=2 superconformal algebra. The larger of these algebras generically allows non-vanishing central charge c, a simple example of which is provided by a system with c=−2. The other algebra, on the other hand, requires vanishing central charge. An intriguing feature of this algebra is that it can be “untwisted” to yield a slight deformation of the N=2 algebra, which nevertheless possesses a hidden N=1 superconformal symmetry.
Publisher
World Scientific Pub Co Pte Lt
Subject
General Physics and Astronomy,Astronomy and Astrophysics,Nuclear and High Energy Physics
Cited by
13 articles.
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