N=2 Superconformal Models as Topological Field Theories
Abstract
We present simple observations on the topological nature of N=2 superconformal field theories. We point out that under a suitable redefinition of the energy-momentum tensor the central charge of N=2 theory vanishes and the theory is transformed into a topological quantum field theory. BRST invariant observables are given by chiral primary fields. We also discuss the relevant perturbations of N=2 and SU(2) coset models.
- Publication:
-
Modern Physics Letters A
- Pub Date:
- 1990
- DOI:
- 10.1142/S0217732390001943
- Bibcode:
- 1990MPLA....5.1693E