论文标题
与远程空间波动密切相关的超导性
Strongly correlated superconductivity with long-range spatial fluctuations
论文作者
论文摘要
我们回顾了使用动态平均场理论的示意图扩展超导性的最新研究。这些方法同时考虑到局部相关效应和空间长距离波动，这对于描述准二维平面中非常规超导性至关重要。结果繁殖并预测强相关系统的实验相图，例如丘比特和镍。进一步的研究表明，配对相互作用顶点的动态筛选效应对过渡温度产生了巨大的后果，甚至可能支持诸如奇数频率配对之类的外来机制。我们还讨论了分层材料的维度以及如何在二维中解释数值结果。
We review recent studies for superconductivity using diagrammatic extensions of dynamical mean field theory. These approaches take into account simultaneously both, the local correlation effect and spatial long-range fluctuations, which are essential to describe unconventional superconductivity in a quasi-two-dimensional plane. The results reproduce and predict the experimental phase diagrams of strongly correlated system such as cuprates and nickelates. Further studies reveal that the dynamical screening effect of the pairing interaction vertex has dramatic consequences for the transition temperature and may even support exotic mechanisms like odd-frequency pairing. We also discuss the dimensionality of layered materials and how to interpret the numerical results in two dimensions.
