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- W3104540963 abstract "We analyze the properties of the quasiparticle excitations of metallic antiferromagnetic states in a strongly correlated electron system. The study is based on dynamical mean field theory (DMFT) for the infinite dimensional Hubbard model with antiferromagnetic symmetry breaking. Self-consistent solutions of the DMFT equations are calculated using the numerical renormalization group (NRG). The low energy behavior in these results is then analyzed in terms of renormalized quasiparticles. The parameters for these quasiparticles are calculated directly from the NRG derived self-energy, and also from the low energy fixed point of the effective impurity model. From these the quasiparticle weight and the effective mass are deduced. We show that the main low energy features of the k-resolved spectral density can be understood in terms of the quasiparticle picture. We also find that Luttinger's theorem is satisfied for the total electron number in the doped antiferromagnetic state." @default.
- W3104540963 created "2020-11-23" @default.
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- W3104540963 date "2007-06-01" @default.
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- W3104540963 title "Renormalized quasiparticles in antiferromagnetic states of the Hubbard model" @default.
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- W3104540963 doi "https://doi.org/10.1140/epjb/e2007-00175-6" @default.
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