Theory of Electronic Transport in Disordered Materials

这是对具有强电子-电子相互作用的无序系统中电子输运现象理论研究的续期资助。有效的场论模型将被开发，并使用微扰技术和重整化群进行研究。具体而言，本研究将围绕两个超导问题和三个涉及金属绝缘体及常规系统相关问题展开。超导性研究的主要问题是二维电子系统中强无序性对常规超导性的抑制和奇异超导性的可能性。在正常导体中的工作旨在提高目前对掺杂半导体中零温度相变的理解。这个正在进行的研究项目将研究电流在几种材料中的输运。统一的主题是载流子之间的相互作用很强。这类材料在新的实际应用中具有最光明的潜在机会，但目前人们对其了解甚少。该项目将研究这类材料的基本问题，这些问题将构成其未来应用的大部分知识基础设施。

This is a renewal grant for theoretical study of electronic transport phenomena in disordered systems having strong electron- electron interactions. Effective field theoretic models will be developed, and studied using perturbative techniques and the renormalization group. Specifically, this research will center on two problems in superconductivity and three problems involving metal-insulator and related problems in normal systems. The issues in superconductivity are the supression of conventional superconductivity by strong disorder and the possibility of exotic superconductivity in two-dimensional electron systems. The work in normal conductors is aimed at enhancing current understanding of zero temperature phase transitions in doped semiconductors. %%% This ongoing research project will study transport of electric current in several types of materials. The unifying theme is that the interactions between the charge carriers is strong. Such materials are potentially among the brightest opportunities for new practical application, and are little understood at the present time. This project will investigate fundamental issues of this class of materials which will form much of the intellectual infrastructure for their future application.