A new approach to derive Pfaffian structures for random matrix ensembles

Details A new approach to derive Pfaffian structures for random matrix ensembles A new approach to derive Pfaffian structures for random matrix ensembles

2009-12-03

arxiv.org/abs/0912.0658v3

J. Phys. A43:135204, 2010

Physics

Mathematical Physics

17 pages; 2 tables

Scientific paper

10.1088/1751-8113/43/13/135204

Correlation functions for matrix ensembles with orthogonal and unitarysymplectic rotation symmetry are more complicated to calculate than in the unitary case. The supersymmetry method and the orthogonal polynomials are two techniques to tackle this task. Recently, we presented a new method to average ratios of characteristic polynomials over matrix ensembles invariant under the unitary group. Here, we extend this approach to ensembles with orthogonal and unitary-symplectic rotation symmetry. We show that Pfaffian structures can be derived for a wide class of orthogonal and unitary-symplectic rotation invariant ensembles in a unifying way. This includes also those for which this structure was not known previously, as the real Ginibre ensemble and the Gaussian real chiral ensemble with two independent matrices as well.

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