Anderson模型的电导率测度
The conductivity measure for the Anderson model
摘要:
本文研究了Anderson紧束缚模型下的线性响应理论中的交流电导。我们定义了交流电导率,并计算了任意费米能量下零温下的线性响应电流。特别地,费米能量可能位于被认为存在扩展态的光谱区域中。
英文摘要:
We study the ac-conductivity in linear response theory for the Anderson tight-binding model. We define the electrical ac-conductivity and calculate the linear-response current at zero temperature for arbitrary Fermi energy. In particular, the Fermi energy may lie in a spectral region where extended states are believed to exist.
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