Low Dimensional Magnetic and Electronic Systems

低维磁和电子系统

• 批准号: 8810541
• 负责人: Michael Fowler
• 金额: $ 11.78万
• 依托单位: University of Virginia Main Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-11-15 至 1992-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8810541&HistoricalAwards=false
• 关键词: Low; Dimensional; Magnetic; Electronic; Systems

There is much recent interest in the condensed matter physics of low dimensional magnetic and electronic systems. Sheets and/or chains of magnetic ions may play a key role in high temperature superconductivity, as may quasi-one-dimensional systems described by the Hubbard model. Models of single magnetic impurities, such as the Kondo and Anderson models, form the basis for understanding heavy electron systems. On the other hand, there have been significant recent advances in understanding and applying Bethe Ansatz techniques to one-dimensional integrable systems. Some of these models are excellent representations of the quasi-one-dimensional systems mentioned above. This research will apply Bethe Ansatz techniques to one-dimensional magnetic and electronic systems, as well as to understanding the sine- Gordon model.

最近人们对低维磁性和电子系统的凝聚态物理产生了很大的兴趣。正如Hubbard模型所描述的准一维体系一样，磁性离子的片状和/或链状可能在高温超导中起到关键作用。单磁性杂质的模型，如近藤模型和安德森模型，构成了理解重电子系统的基础。另一方面，最近在理解和应用Bethe Anatz技巧到一维可积系统方面取得了重大进展。其中一些模型是上述准一维系统的很好的表示。这项研究将把Bethe Anatz技术应用于一维磁性和电子系统，以及理解Sine-Gordon模型。