Ergodicity of random-matrix theories: the unitary case
We prove ergodicity of unitary random-matrix theories by showing that the autocorrelation function with respect to energy or magnetic field strength of any observable vanishes asymptotically. We do so using Efetov's supersymmetry method, a polar decomposition of the saddle-point manifold, and an asymptotic evaluation of the boundary terms generated in this fashion.
Pluha&rbreve;
Z
Charles University, Prague, Czech Republic.
Weidenmuller
HA