The Quantum Superstring as a WZNW Model
نویسندگان
چکیده
We present a new development in our approach to the covariant quantization of superstrings in 10 dimensions which is based on a gauged WZNW model. The WZNW action reduces to our earlier free-field quantum action after a field redefinition, and to the GreenSchwarz classical action after constraining the current in Berkovits’ BRST charge to vanish. Physical states form the cohomology of a BRST charge Q, with vanishing grading and invariant under a dual charge ∮
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