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arXiv · hep-th/0105059

Split string field theory I

David J. Gross·Washington Taylor
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Abstract

We describe projection operators in the matter sector of Witten's cubic string field theory using modes on the right and left halves of the string. These projection operators represent a step towards an analytic solution of the equations of motion of the full string field theory, and can be used to construct Dp-brane solutions of the string field theory when the BRST operator Q is taken to be pure ghost, as suggested in the recent conjecture by Rastelli, Sen and Zwiebach. We show that a family of solutions related to the sliver state are rank one projection operators on the appropriate space of half-string functionals, and we construct higher rank projection operators corresponding to configurations of multiple D-branes.

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David J. Gross, Washington Taylor. 2001-06-04. Split string field theory I. https://doi.org/10.1088/1126-6708%2F2001%2F08%2F009

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