English

BMN Correlators by Loop Equations

High Energy Physics - Theory 2009-11-07 v1

Abstract

In the BMN approach to N=4 SYM a large class of correlators of interest are expressible in terms of expectation values of traces of words in a zero-dimensional Gaussian complex matrix model. We develop a loop-equation based, analytic strategy for evaluating such expectation values to any order in the genus expansion. We reproduce the expectation values which were needed for the calculation of the one-loop, genus one correction to the anomalous dimension of BMN-operators and which were earlier obtained by combinatorial means. Furthermore, we present the expectation values needed for the calculation of the one-loop, genus two correction.

Keywords

Cite

@article{arxiv.hep-th/0209244,
  title  = {BMN Correlators by Loop Equations},
  author = {B. Eynard and C. Kristjansen},
  journal= {arXiv preprint arXiv:hep-th/0209244},
  year   = {2009}
}

Comments

22 pages, 10 figures