Correlated Electron Transport in Mesoscopic Structures

9731756 Glazman将在受限相互作用电子系统中进行相关电子输运理论的研究，目的是阐明介观涨落的作用。工作将集中在量子点的电容波动，双点器件的介观波动，连接超导引线的正常金属晶粒的介观波动，以及通过垂直隧道进入GaAs异质结构可能实现的耦合2D-3D电子系统中的许多体效应和介观波动。首席研究员计划采用一种分析方法，利用各种理论技术来研究这些系统中的介观波动；这些方法包括玻色子化、有效作用、重整化群以及图解技术。这一理论研究涉及理解电子器件类结构中围绕电子输运的量子力学过程和现象，这些结构是在原子和宏观之间的长度尺度上构建的。这项工作将对现有的解释和设计新的实验产生直接影响，这些实验旨在阐明介观装置中电子传输的物理特性。在介观和较小长度尺度上对这些现象的研究预计将深刻影响下个世纪新兴的电子器件技术。＊＊＊

9731756 Glazman Research will be conducted on the theory of correlated electron transport in confined interacting electron systems with an aim to elucidate the role of mesoscopic fluctuations. Work will focus on capacitance fluctuations in quantum dots, mesoscopic fluctuations in double-dot devices, mesoscopic fluctuations in a normal metal grain connected to superconducting leads, and on many body effects and mesoscopic fluctuations in coupled 2D-3D electronic systems that may be realized by vertical tunneling into GaAs heterostructures. The principal investigator plans an analytic approach using various theoretical techniques to investigate mesoscopic fluctuations in these systems; these include methods of bosonization, effective action, renormalization group, as well as diagrammatic techniques. %%% This theoretical research involves understanding quantum mechanical processes and phenomena surrounding the transport of electrons in electronic device-like structures that are constructed on length scales between the atomic and the macroscopic. This work will have immediate impact on the interpretation of existing, and design of new, experiments designed to elucidate the physics of electron transport in mesoscopic devices. The study of these phenomena on mesoscopic and smaller length scales is expected to profoundly influence emerging electronic device technologies of the next century. ***