The BRST quantization of the O(2) string

The BRST charge for the N = 2, O(2) superstring theory is given. The O(2) algebra is realized a la Kac-Moody, which would seem to cause problems in the BRST formulation, however, the BRST charge is nilpotent due to the supersymmetry of the model. The nilpotency of the BRST charge determines the crit...

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Bibliographic Details
Published in:Physics letters. B 1986-10, Vol.179 (1), p.69-74
Main Authors: Bogojevic, Aleksandar R., Hlousek, Zvonimir
Format: Article
Language:English
Subjects:
Applied sciences
Classical and quantum physics: mechanics and fields
Exact sciences and technology
Other techniques and industries
Physics
Theory of quantized fields
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Summary:The BRST charge for the N = 2, O(2) superstring theory is given. The O(2) algebra is realized a la Kac-Moody, which would seem to cause problems in the BRST formulation, however, the BRST charge is nilpotent due to the supersymmetry of the model. The nilpotency of the BRST charge determines the critical dimension of the model to be D = 2, and the intercept to the Regge trajectory becomes zero, making the model tachyon-free. We use the BRST charge to construct a free field theory of the model.
ISSN:0370-2693
1873-2445
DOI:10.1016/0370-2693(86)90437-5