U.S.-Hungary Theoretical Physics Research: Strongly Coupled Coulomb Systems

美国-匈牙利理论物理研究：强耦合库仑系统

• 批准号: 0002200
• 负责人: Gabor Kalman
• 金额: $ 2.46万
• 依托单位: Boston College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-08-01 至 2004-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0002200&HistoricalAwards=false
• 关键词: U.S.; Hungary; Theoretical; Physics; Research

INT 0002200KalmanThis U.S.-Hungary project between Gabor Kalman of Boston College and Zoltan Donko of the Research Institute for Solid State Physics and Optics, Budapest, examines Strongly Coupled Coulomb Systems (SCCS) which are characterized by a significant ratio of the Coulomb interparticle potential energy to the kinetic energy of the particles. The strong coupling effects can take place both in the electronic and ionic components and one finds them in settings such as inertially confined plasmas, astrophysics, condensed matter systems, mesoscopic matter, and laser and particle beams for thermonuclear fusion. Specifically, this U.S.-Hungarian team intends to address layered systems (electronic or ionic bilayer, modeled by two quasi two-dimensional layers of charged particles) and dusty plasmas (liquids and crystal). Kalman and his group bring a strong theoretical underpinning to the work while Donko contributes expertise with molecular dynamics (MD) simulations that will be utilized as an "experimental" check for the theoretical aspects of this study of SCCS. Their collaborative research plan features computation of pair correlation functions, dynamic structure functions, and transport coefficients. The MD simulation work serves two purposes by providing: 1) an independent source of data for quantities obtained through theoretical calculations, making a comparison between theoretical and MD results possible; and 2) information on physical quantities for which a theoretical model is not available. If successful, results should improve our fundamental understanding of SCCS and serve as a check for theoretical predictions related to material properties and phase changes. This project in theoretical physics fulfills the program objective of advancing scientific knowledge by enabling experts in the United States and Central Europe to combine complementary talents and share research resources in areas of strong mutual interest and competence.

INT 0002200 Kalman这个美国-波士顿学院的Gabor Kalman和布达佩斯固态物理与光学研究所的Zoltan Donko之间的匈牙利项目研究了强耦合库仑系统（SCCS），其特征在于库仑粒子间势能与粒子动能的显著比率。 强耦合效应可以发生在电子和离子成分中，人们可以在惯性约束等离子体、天体物理学、凝聚态系统、介观物质以及热核聚变的激光和粒子束等环境中找到它们。 具体来说，美国-匈牙利团队打算解决分层系统（电子或离子双层，由两个准二维带电粒子层建模）和尘埃等离子体（液体和晶体）。 Kalman和他的团队为这项工作带来了强大的理论基础，而Donko则贡献了分子动力学（MD）模拟的专业知识，这些模拟将被用作SCCS这项研究的理论方面的“实验”检查。 他们的合作研究计划的特点是计算对相关函数，动态结构函数和传输系数。MD模拟工作通过提供以下两个目的：1）通过理论计算获得的量的独立数据源，使得理论结果和MD结果之间的比较成为可能;以及2）关于理论模型不可用的物理量的信息。 如果成功的话，结果应该会提高我们对SCCS的基本理解，并作为与材料性质和相变相关的理论预测的检查。该理论物理项目通过使美国和中欧的专家能够联合收割机互补人才并在共同感兴趣和能力强的领域共享研究资源，实现了推进科学知识的计划目标。