Physical States and Correction Terms of the Supersymmetric c = 1 Model
Abstract
In this article, we investigate the supersymmetric c = 1 model of superstring theory and demonstrate
how the spectrum of states is expanded and new symmetries of the theory are generated by the existence
of ghost cohomologies. As a result, we establish significant connections between two-dimensional supergravity
and physical theories in higher dimensions. Additionally, we provide a comprehensive guide for
constructing BRST-invariant and nontrivial vertex operators and carry out explicit computations to determine
the correction terms needed to maintain the BRST invariance of the corresponding currents.
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