Covariant Quantization of Superstrings Without Pure Spinor Constraints

Preprint

18 December 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-th/0112162

Abstract

We construct a covariant quantum superstring, extending Berkovits' approach by introducing new ghosts to relax the pure spinor constraints. The central charge of the underlying Kac-Moody algebra, which would lead to an anomaly in the BRST charge, is treated as a new generator with a new b-c system. We construct a nilpotent BRST current, an anomalous ghost current and an anomaly-free energy-momentum tensor. For open superstrings, we find the correct massless spectrum. In addition, we construct a Lorentz invariant B-field to be used for the computation of the integrated vertex operators and amplitudes.

Keywords

PURE SPINOR CONSTRAINTS
COVARIANT QUANTIZATION
QUANTIZATION
SUPERSTRING
LORENTZ
ANOMALY

All Related Versions

Version 1, 2001-12-18, ArXiv
Published version: Journal of High Energy Physics, 2002 (10), 054.

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