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

这个由罗德岛大学的Alexander Meyerovich博士和保加利亚科学院固体物理研究所的Klara Ivanova博士合作的美国-保加利亚研究项目的主要目标是研究边界现象。本项目聚焦于自旋极化量子系统的物理学，研究在吸收边界层存在的情况下，壁上的滑移效应和横向或纵向自旋弛豫。研究人员计划在现有滑移效应理论的基础上进行推广，以纳入自旋极化量子系统，分析新的效应，并通过计算量子系统的不同滑移系数来完成技术方面的工作。他们将使用自旋极化费米液体和量子气体来确定长度，推导适当的Onsager关系并计算滑移系数的值，并将其应用于自旋极化量子系统中的纵向自旋扩散。该项目在自旋极化量子系统物理学方面的结果有望导致对温度或磁化等几个热力学和流体动力学特性的定值进行明显的修正，并导致对既定实验结果的重新分析。这个项目产生的信息很可能适用于研究任何量子液体或情况的多组分混合物。该材料理论项目通过使美国和东欧的领先专家在共同感兴趣和能力强的领域结合互补的人才和集中研究资源，实现了推进科学知识的计划目标。

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.