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- W2084656995 abstract "We present an approximate self-energy functional for the infinite-dimensional Hubbard model. This functional is a natural extension of the exact solution of the Falicov-Kimball model to the spin-symmetric case, and is exact in the uncorrelated and atomic limits. Using the functional we calculate the susceptibility and the specific heat for the Lorentzian density of states. We find that the susceptibility crosses over smoothly from that expected for an uncorrelated state with antiferromagnetic fluctuations to a Fermi liquid state at low temperature via a Kondo-type anomaly. The specific heat shows a peak at the corresponding Kondo temperature." @default.
- W2084656995 created "2016-06-24" @default.
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- W2084656995 date "1992-12-10" @default.
- W2084656995 modified "2023-09-27" @default.
- W2084656995 title "A SELF-ENERGY FUNCTIONAL FOR THE INFINITE-DIMENSIONAL HUBBARD MODEL" @default.
- W2084656995 doi "https://doi.org/10.1142/s0217984992001526" @default.
- W2084656995 hasPublicationYear "1992" @default.
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