U.S.-Bulgaria Research on Boundary Phenomena in Spin- Polarized Quantum Systems

美国-保加利亚关于自旋极化量子系统边界现象的研究

• 批准号: 9108116
• 负责人: Alexander Meyerovich
• 金额: $ 1.09万
• 依托单位: University of Rhode Island
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-09-01 至 1995-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9108116&HistoricalAwards=false
• 关键词: U.S.; Bulgaria; Research; Boundary; Phenomena

The primary objective of this US-Bulgaria research project between Dr. Alexander Meyerovich of the University of Rhode Island and Dr. Klara Ivanova of the Institute for Solid State Physics, Bulgarian Academy of Sciences, is to study boundary phenomena. This project focuses on the physics of spin-polarized quantum systems to research slip effects and transverse or longitudinal spin relaxation at the walls in the presence of absorbed boundary layers. Researchers plan to generalize from the existing theory of slip effects in order to incorporate spin-polarized quantum systems, to analyze new effects and to accomplish the technical aspects by the calculation of different slip coefficient for quantum systems. They will use spin-polarized Fermi liquids and quantum gases to determine the length, derive proper Onsager relations and calculate the values of slip coefficients, and to apply to longitudinal spin diffusion in spin-polarized quantum systems. The results of this project in the physics of spin-polarized quantum systems are expected to lead to noticeable corrections for stationary values of several thermo- and hydrodynamic characteristics such as temperature or magnetization and result in the reanalyzing of well-established experimental results. The information resulting from this project is likely to be applicable to the study of any multicomponent mixtures of quantum liquids or cases. This project in materials theory fulfills the program objective of advancing scientific knowledge by enabling leading experts in the United States and Eastern Europe to combine complementary talents and pool research resources in areas of strong mutual interest and competence.

这项美国和保加利亚研究的主要目标是 该大学的亚历山大梅耶罗维奇博士 罗得岛的科学家和研究所的克拉拉·伊万诺娃博士 保加利亚科学院固体物理学研究所 是研究边界现象 该项目的重点是 自旋极化量子系统的物理学， 研究滑动效应和横向或纵向 自旋弛豫在壁的存在下吸收 边界层 研究人员计划从 现有的滑移效应理论， 自旋极化量子系统，分析新的效应 并通过计算来完成技术方面的工作， 不同的滑移系数。 他们 将使用自旋极化的费米液体和量子气体 为了确定长度，导出适当的Onsager关系式 并计算滑移系数值， 应用于自旋极化中的纵向自旋扩散 量子系统 该项目的成果在 自旋极化量子系统的物理学 从而导致对固定值的显著校正 几个热和流体动力学特性， 因为温度或磁化， 重新分析已确立的实验结果。 该项目产生的信息可能会 适用于任何多组分的研究 量子液体或壳的混合物。 本课题在材料理论方面实现了该方案 促进科学知识的目标， 美国和东欧的顶尖专家 联合收割机互补人才，集中研究 共同感兴趣的领域的资源， 能力。