Electron Correlations in the High-Dimension Hubbard Model

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概要

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• The effect of electron correlations in the infinite-dimension (d=∞) Hubbard model at finite temperatures has been investigated with the use of a theory which was recently proposed by the present author generalizing the slave-boson functional-integral method. Sublattice magnetizations, double occupancies and band-narrowing factors are computed as functions of the interaction, U, and the temperature, T. Calculated results are exact in the limits of U→0 and U→∞, and in the limits of T=0 and T→∞ they are expected to be very accurate owing to the nature of our mean-field-type theory for infinite-dimension systems. Similarities and differences between the calculated results for d=3 and d=∞ are also discussed.

• 理論物理学刊行会の論文
• 1991-02-05

著者

• HASEGAWA Hideo

  富山医科薬科大学和漢薬研究所病態生化学部門

• Hasegawa H

  Happy World Inc. Tokyo Jpn

• Hasegawa Hideo

  Department Of Biology Faculty Of Medicine Oita University

• Hasegawa Hideo

  Itto Institute of Life Science Research, Happy World Inc.,

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