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arXiv · hep-th/0303086

Noncommutative probability, matrix models, and quantum orbifold geometry

C. -W. H. Lee
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Abstract

Inspired by the intimate relationship between Voiculescu's noncommutative probability theory (of type A) and large-N matrix models in physics, we look for physical models related to noncommutative probability theory of type B. These turn out to be fermionic matrix-vector models at the double large-N limit. In the context of string theory, they describe different orbifolded string worldsheets with boundaries. Their critical exponents coincide with that of ordinary string worldsheets, but their renormalised tree-level one-boundary amplitudes differ.

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C. -W. H. Lee. 2003-07-07. Noncommutative probability, matrix models, and quantum orbifold geometry. https://doi.org/10.1088/1126-6708%2F2003%2F06%2F044

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