Correlation Functions of Complex Matrix Models

Details Correlation Functions of Complex Matrix Models Correlation Functions of Complex Matrix Models

2005-11-02

arxiv.org/abs/hep-th/0511019v2

J.Phys.A39:8749-8774,2006

Physics

High Energy Physics

High Energy Physics - Theory

latex BMN.tex, 7 files, 6 figures, 30 pages (v2 for spelling mistake and added reference) [http://www-spht.cea.fr/articles/T05

Scientific paper

10.1088/0305-4470/39/28/S01

For a restricted class of potentials (harmonic+Gaussian potentials), we express the resolvent integral for the correlation functions of simple traces of powers of complex matrices of size $N$, in term of a determinant; this determinant is function of four kernels constructed from the orthogonal polynomials corresponding to the potential and from their Cauchy transform. The correlation functions are a sum of expressions attached to a set of fully packed oriented loops configurations; for rotational invariant systems, explicit expressions can be written for each configuration and more specifically for the Gaussian potential, we obtain the large $N$ expansion ('t Hooft expansion) and the so-called BMN limit.

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