paper

USp(2k) Matrix Model: Schwinger-Dyson Equations and Closed-Open String Interactions

arXiv:hep-th/9812177 · doi:10.1143/PTP.101.1371

Abstract

We derive the Schwinger-Dyson/loop equations for the USp(2k) matrix model which close among the closed and open Wilson loop variables. These loop equations exhibit a complete set of the joining and splitting interactions required for the nonorientable Type I superstrings. The open loops realize the SO(2n_f) Chan-Paton factor and their linearized loop equations derive the mixed Dirichlet/Neumann boundary conditions.

22 pages, 13 figures

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