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Pure Spinor Formalism as an N=2 Topological String (2005)
| Citations: | 36 - 7 self |
BibTeX
@MISC{Berkovits05purespinor,
author = {Nathan Berkovits},
title = { Pure Spinor Formalism as an N=2 Topological String},
year = {2005}
}
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Abstract
Following suggestions of Nekrasov and Siegel, a non-minimal set of fields are added to the pure spinor formalism for the superstring. Twisted ĉ = 3 N=2 generators are then constructed where the pure spinor BRST operator is the fermionic spin-one generator, and the formalism is interpreted as a critical topological string. Three applications of this topological string theory include the super-Poincaré covariant computation of multiloop superstring amplitudes without picture-changing operators, the construction of a cubic open superstring field theory without contact-term problems, and a new four-dimensional version of the pure spinor formalism which computes F-terms in the spacetime action.
Keyphrases
pure spinor formalism topological string super-poincar covariant computation pure spinor brst operator picture-changing operator non-minimal set new four-dimensional version contact-term problem topological string theory field theory spacetime action fermionic spin-one generator critical topological string
