Correlated Electron Transport in Mesoscopic Structures

介观结构中的相关电子传输

• 批准号: 9731756
• 负责人: Leonid Glazman
• 金额: $ 44万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-03-01 至 2004-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9731756&HistoricalAwards=false
• 关键词: Correlated; Electron; Transport; Mesoscopic; Structures

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. ***

小行星9731756 将对受限相互作用电子系统中的相关电子输运理论进行研究，目的是阐明介观波动的作用。工作将集中在量子点中的电容波动，双点器件中的介观波动，连接到超导引线的正常金属颗粒中的介观波动，以及耦合的2D-3D电子系统中的许多体效应和介观波动，这些系统可以通过垂直隧穿到GaAs异质结构中来实现。主要研究者计划使用各种理论技术来研究这些系统中的介观波动的分析方法;这些方法包括玻色化，有效作用，重整化群以及图解技术。 这项理论研究涉及理解量子力学过程和现象周围的电子设备的结构，是在原子和宏观之间的长度尺度上构建的电子传输。这项工作将直接影响现有的解释，并设计新的实验，旨在阐明介观器件中的电子输运物理。在介观和更小的长度尺度上对这些现象的研究有望深刻地影响下一个世纪新兴的电子器件技术。 ***