关于各向异性费米液体DC电导率的初学者札记:前桥-福山公式和泰勒公式
A diagrammer's note on DC conductivity of anisotropic Fermi liquids for beginners: Maebashi-Fukuyama formula and Taylor formula
摘要:
本文综述了各向异性费米液体直流电导率的形式化但精确的公式。一种是基于费米面调和函数的前桥-福山公式。另一种是基于散射本征函数的泰勒公式。与这两个公式相比,涨落交换近似中的电流-顶点-修正是一个不一致的近似所引起的不好的视觉。
英文摘要:
Formal but exact DC conductivity formulae for anisotropic Fermi liquids are reviewed. One is the Maebashi-Fukuyama formula based on the Fermi-surface harmonics. The other is the Taylor formula based on the scattering eigenfunction. In comparison to these two formulae the current-vertex-correction in the fluctuation-exchange approximation is shown to be a bad vision caused by an inconsistent approximation.
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