Physics – Condensed Matter
Scientific paper
1995-08-29
Physics
Condensed Matter
23 pages, RevTex, hard figures available from mason@itp.ucsb.edu
Scientific paper
10.1103/PhysRevE.53.1399
We derive the connected correlation functions for eigenvalues of large Hermitian random matrices with independently distributed elements using both a diagrammatic and a renormalization group (RG) inspired approach. With the diagrammatic method we obtain a general form for the one, two and three-point connected Green function for this class of ensembles when matrix elements are identically distributed, and then discuss the derivation of higher order functions by the same approach. Using the RG approach we re-derive the one and two-point Green functions and show they are unchanged by choosing certain ensembles with non-identically distributed elements. Throughout, we compare the Green functions we obtain to those from the class of ensembles with unitary invariant distributions and discuss universality in both ensemble classes.
D'Anna J.
Zee Anthony
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