The effect of superconducting fluctuations on the ac conductivity of a 2D electron system in the diffusive regime

I. S. Burmistrov

doi:10.1016/j.aop.2020.168201

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arXiv · 2004.14596

The effect of superconducting fluctuations on the ac conductivity of a 2D electron system in the diffusive regime

I. S. Burmistrov

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Abstract

We report a complete analytical expression for the one-loop correction to the ac conductivity $σ(ω)$ 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 $1/(iω)$ divergency in the static limit, $ω\to 0$, in agreement with general expectations for the normal state conductivity of a disordered electron system.

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I. S. Burmistrov. 2020-04-30. The effect of superconducting fluctuations on the ac conductivity of a 2D electron system in the diffusive regime. https://doi.org/10.1016/j.aop.2020.168201

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