High Energy Dynamics of the Single Impurity Anderson Model
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The quantitative control of the dynamic correlations of single impurity Anderson models is essential in several very active fields. We analyze the one-particle Green function with a constant energy resolution by dynamic density-matrix renormalization. In contrast to other approaches, sharp dominant resonances at high energies are found. Their origin and importance are discussed.
4 pages, 5 figures included, final version
4 pages, 5 figures included, final version