Transport in Disordered Systems

无序系统中的传输

• 批准号: 8702705
• 负责人: Jonathan Machta
• 金额: $ 12.84万
• 依托单位: University of Massachusetts Amherst
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-07-15 至 1990-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8702705&HistoricalAwards=false
• 关键词: Transport; Disordered; Systems

Transport properties of disordered systems will be investigated. Three areas will be considered--localization of classical waves, random walks on disordered structures and the properties of random resistor networks. The primary tool in carrying out this research is the renormalization group in several of its forms although computer simulations and a variety of other theoretical methods will also be employed. The research will relate to a variety of physical problems including: the propagation of third sound on disordered substrates, relaxation in glassy or frustrated systems such as spin glasses, and the conductivity and breakdown properties of composite materials.

将研究无序系统的运输特性。 将考虑三个领域 - 经典波浪，无序结构上的随机行走以及随机电阻网络的特性。 进行这项研究的主要工具是重新归一化组的几种形式，尽管还将采用计算机模拟和各种其他理论方法。 这项研究将与各种物理问题有关，包括：第三种声音在无序底物上的传播，玻璃或沮丧的系统（例如自旋玻璃）的放松以及复合材料的电导率和分解特性。