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We consider intersecting brane solutions of the type IIB matrix model. It isshown that fermionic zero-modes arise on such backgrounds, localized at thebrane intersections. They lead to chiral fermions in four dimensions undercertain conditions. Such configurations reproduce many of the welcome featuresin similar string-theoretic constructions. Therefore they can be used toconstruct semi-realistic particle physics models in the framework of Yang-Millsmatrix models. In particular, we present a brane configuration which realizesthe correct chiral spectrum of the standard model in the matrix model.Furthermore, the stability of intersecting branes is discussed by analyzing the1-loop effective action. It is shown that intersecting branes may form a boundstate for certain flux configurations. The four-dimensional geometry of thebranes is generic, and determined by the (emergent) gravity sector of thematrix model.

Intersecting branes and a standard model realization in matrix models