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Supertwistor formulation for higher-dimensional superstrings
The formulation for the superstring action in six and ten dimensions involving supertwistor variables that appropriately generalize four-dimensional Ferber supertwistors is considered. The equations of motion and κ-symmetry transformations in terms of the supertwistors are derived. It is shown that covariant κ-symmetry gauge-fixing reduces the superstring action to the quadratic …