Transverse Dynamics and Relaxation in Fermi Systems

费米系统中的横向动力学和弛豫

• 批准号: 9412769
• 负责人: Alexander Meyerovich
• 金额: $ 15.6万
• 依托单位: University of Rhode Island
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-07-15 至 1998-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9412769&HistoricalAwards=false
• 关键词: Transverse; Dynamics; Relaxation; Fermi; Systems

9412769 Technical Abstract: The research on this renewal grant will focus on transverse dynamics and relxation of Fermi systems. The main theoretical objectives are to obtain macroscopic equation for spin dynamics at finite temperatures, study zero-temperature attenuation in longitudinal dynamics, apply the theory to itinerant magnetic systems and study the zero-temperature attenuation in Heisenberg models. In addition, the boundary effects will be studied by reducing the problem to an equivalent problem of random imperfections. Non-Technical Abstract: This is a continuation of the work on transverse spin dynamics in spin-polarized Fermi liquids at zero and finite temperature. The previous work of quantum liquids will be extended to metallic and itinerant magnets.

9412769技术摘要：关于这一续期拨款的研究将集中在费米系统的横向动力学和相对论。主要的理论目标是得到有限温度下自旋动力学的宏观方程，研究纵向动力学中的零温衰减，将该理论应用于巡回磁系统，并研究海森堡模型中的零温衰减。此外，通过将问题归结为随机缺陷的等价问题来研究边界效应。非技术摘要：这是关于自旋极化费米液体在零温度和有限温度下横向自旋动力学的工作的继续。量子液体之前的工作将扩展到金属和巡回磁体。