One-Particle Excitation of the Two-Dimensional Hubbard Model

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概要

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• The real part of the self-energy of interacting two-dimensional electrons has been calctrlated inthe Z-naatrix approxitnation. It is shown that the forward scattering resvxlts in an anounalotrs ternaleading to the vanishing renorrnalization factor of the otae-particle Green function, 'xvhich is anon-perttmrbative effect of the interaction U. The present restrlt is a nuicroscopic demonstration ofthe claim by Anderson based on the conventional anany-body theory. The effect of the danapingof tl'xe interacting electrons, which has been ignored in reaching arbove conclusion, has been brieflydiscussed,

• 社団法人日本物理学会の論文
• 1997-03-15

著者

• Yokoyama K

  Tokyo Univ. Tokyo

• YOKOYAMA Ken

  Depatment of Physics,Tokyo University

• FUKUYAMA Hidetoshi

  Depatment of Physics,Tokyo University

• Fukuyama Hidetoshi

  Depatment Of Physics Faculty Of Science The University Of Tokyo

• Fukuyama Hidetoshi

  Depatment Of Physics Tokyo University

関連論文

• One-Particle Excitation of the Two-Dimensional Hubbard Model
• Spin Gap of S=1/2 Heisenberg Ladder:Field Theoretical Study of Magnetic Susceptibility and NMR Relazation Rate

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