Pure spinors, twistors, and emergent supersymmetry
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Undergraduate course
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Springer
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Abstract
Starting with a classical action whose matter variables are a d=10 spacetime vector x(m) and a pure spinor lambda(alpha), the pure spinor formalism for the superstring is obtained by gauge-fixing the twistor-like constraint partial derivative x(m)(gamma(m)lambda)(alpha) = 0. The fermionic variables theta(alpha) are Faddeev-Popov ghosts coming from this gauge-fixing and replace the usual (b, c) ghosts coming from gauge-fixing the Virasoro constraint. After twisting the ghost-number such that theta(alpha) has ghost-number zero and lambda(alpha) has ghost-number one, the BRST cohomology contains the usual spacetime supersymmetric states of the superstring.
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Superstrings and Heterotic Strings, BRST Symmetry
Language
English
Citation
Journal of High Energy Physics. New York: Springer, n. 12, p. 10, 2012.
