We report a complete analytical expression for the one-loop correction to the ac conductivity $\sigma(\omega)$ of a disordered two-dimensional electron system in the diffusive regime. The obtained expression includes the weak localization and Altshuler-Aronov corrections as well as the corrections due to superconducting fluctuations above superconducting transition temperature. The derived expression has no $1/(i\omega)$ divergency in the static limit, $\omega\to 0$, in agreement with general expectations for the normal state conductivity of a disordered electron system.

中文翻译：

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超导波动对扩散区中二维电子系统交流电导率的影响

我们报告了一个完整的分析表达式，用于对扩散状态下无序二维电子系统的交流电导率 $\sigma(\omega)$ 进行单回路校正。获得的表达式包括弱局部化和 Altshuler-Aronov 校正以及由于超导转变温度以上的超导波动引起的校正。导出的表达式在静态极限 $\omega\to 0$ 中没有 $1/(i\omega)$ 分歧，与对无序电子系统的正常状态电导率的一般预期一致。