Transverse Dynamics and Relaxation in Fermi Systems

9412769 技术摘要：本次更新资助的研究将集中于费米系统的横向动力学和弛豫。主要理论目标是获得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度衰减，将该理论应用于巡回磁系统以及研究海森堡模型中的零温度衰减。 此外，将通过将问题简化为随机缺陷的等效问题来研究边界效应。 非技术摘要：这是零温度和有限温度下自旋极化费米液体中横向自旋动力学工作的延续。 量子液体的先前工作将扩展到金属和流动磁体。

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.