String field theory vertex from integrability
arXiv:1501.04533 · doi:10.1007/JHEP04(2015)042
Abstract
We propose a framework for computing the (light cone) string field theory vertex in the case when the string worldsheet QFT is a generic integrable theory. The prime example and ultimate goal would be the superstring theory cubic string vertex and the chief application will be to use this framework as a formulation for SYM theory OPE coefficients valid at any coupling up to wrapping corrections. In this paper we propose integrability axioms for the vertex, illustrate them on the example of the pp-wave string field theory and also uncover similar structures in weak coupling computations of OPE coefficients.
pdflatex, 52 pages, 20 figures,v2: references added, typos corrected
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