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Exact Density of States for finite Gaussian Random Matrix Ensembles via Supersymmetry

Frieder Kalisch·Daniel Braak
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Abstract

We calculate the exact density of states (DOS) for the three classical and two non-classical Random Matrix Ensembles for finite matrix size N using supersymmetric integrals. The 1/N-Expansion yields already in lowest order good approximations to the exact result even for small values of N~5. We conjecture a connection between the N-dependence of the oscillating part of the DOS and the short-distance behavior of the two-level correlation function.

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Frieder Kalisch, Daniel Braak. 2002-01-31. Exact Density of States for finite Gaussian Random Matrix Ensembles via Supersymmetry. https://doi.org/10.1088/0305-4470%2F35%2F47%2F302

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