SGER: Nonlinear Theory of Anomalous Resistivity

SGER：反常电阻率非线性理论

• 批准号: 0836364
• 负责人: Peter Yoon
• 金额: $ 3.99万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-01 至 2009-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0836364&HistoricalAwards=false
• 关键词: SGER; Nonlinear; Theory; Anomalous; Resistivity

Magnetic reconnection is an important physical processes in many areas of plasma physics. It is especially important in the solar corona, at Earth's magnetopause, and in Earth's magnetotail. It is thought that anomalous resistivity associated with plasma turbulence plays a significant and perhaps critical role in the physical processes by which magnetic reconnection takes place. Anomalous resisteivity has been examined many times in terms of quasi-linear theory but a detailed non-linear theory has yet to be found. This project will develop a fully non-linear theory of anomalous resistivity that arises from the Buneman plasma instability. There is a significant risk of failure associated with the research, but if successful a non-linear theory of anomalous resistivity has the potential to be transformative.

磁场重联是等离子体物理中一个重要的物理过程。 它在太阳日冕、地球磁层顶和地球磁尾中尤为重要。 人们认为，与等离子体湍流相关的异常电阻率在磁重联发生的物理过程中起着重要的，也许是关键的作用。 反常电阻率已经被用准线性理论研究过很多次，但详细的非线性理论还没有被发现。本项目将发展一个完全非线性的理论，研究由布尼曼等离子体不稳定性引起的反常电阻率。 有一个与研究相关的失败的重大风险，但如果成功的异常电阻率的非线性理论有可能是变革。