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Self‐consistent‐field calculations for the Anderson impurity model
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16.The approximation for the self-energy discussed here is rigorously conserving. The approximation for the magnetic susceptibility is conserving up to a set of vertex corrections of the Aslamazov-Larkin form. We have discussed elsewhere the rationale for omitting these diagrams from FLEX approximations (Refs. 9–11).
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18.The spectral densities shown in Fig. 2 integrate to unity with 2% accuracy. The curves for all three temperatures have equal weight to 0.5% accuracy.
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