Abstract:
The behavior of correlation functions is studied in a class of matrix models characterized by a measure exp(−S) containing a potential term and an external source term: S=N tr(V(M) −MA). In the large N limit, the short-distance behavior is found to be identical to the one obtained in previously studied matrix models, thus extending the universality of the level-spacing distribution. The calculation of correlation functions involves (finite N) determinant formulae, reducing the problem to the large N asymptotic analysis of a single kernel K. This is performed by an appropriate matrix integral formulation of K. Multi-matrix generalizations of these results are discussed.
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Received: 14 May 1997 / Accepted: 5 November 1997
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Zinn-Justin, P. Universality of Correlation Functions of Hermitian Random Matrices in an External Field. Comm Math Phys 194, 631–650 (1998). https://doi.org/10.1007/s002200050372
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DOI: https://doi.org/10.1007/s002200050372