Collaborative Research: Research on Strongly Coupled Plasmas

合作研究：强耦合等离子体研究

• 批准号: 0813153
• 负责人: Gabor Kalman
• 金额: $ 22.34万
• 依托单位: Boston College
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-15 至 2013-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0813153&HistoricalAwards=false
• 关键词: Collaborative; Research; Strongly; Coupled; Plasmas

A Collaborative Project of theoretical/computational research on strongly coupled plasmas will be continued by Boston College (BC; Dr. Gabor J. Kalman, Principal Investigator) and the University of Vermont (UVM; Dr. Kenneth I. Golden, Principal Investigator).The coupling strength of a plasma is characterized by the ratio of the average Coulomb interaction energy to the average kinetic energy. The plasma is considered to be strongly coupled when this ratio is exceeds unity to the extent that the collection of charged particles is in the liquid or solid phase, exotic states of matter that are in marked contrast to the traditional gaseous plasmas studied in Tokamak fusion devices and space physics. Strong Coulomb interactions are exhibited by a variety of fascinating classical and quantum plasma systems, e.g., layered charged-particle systems in semiconductor quantum wells, layered charged particles confined in cryogenic traps, astrophysical plasmas (giant planetary interiors, white dwarf interiors, the outer crusts of neutron stars, etc.), and laboratory dusty plasmas. The collaborative UVM/BC Project addresses issues central to the physics of strongly coupled plasma dynamics. Two general objectives for continued progress in this field are set forth. The first objective is to continue building up the theoretical framework for the description of the dynamics of strongly coupled plasma liquids. The second objective is the application of this understanding, gained in the study of strongly coupled plasmas, to novel physical systems that are in the forefront of condensed matter physics research. It is now recognized that the various guises of the quantum Coulomb liquid in semiconductors exhibit behavior that is to be understood within the framework of strongly coupled plasma dynamics while also presenting some unique ramifications of the original issues (formation of dipoles, ultra-relativistic-like behavior of graphene electrons, etc). The analysis of the collective modes (natural frequencies) and response functions pertaining to these novel semiconductor plasmas is the second main objective of the Project. The research, with its first-principles microscopic and simulation approaches to the determination of the dynamic properties of a wide variety of strongly coupled Coulomb systems, will substantially add to the fundamental knowledge base of plasma and condensed matter physics. This research will continue to provide new insights into the borderline area between these two disciplines by highlighting the similarity of the underlying physics that governs the behavior of plasma and condensed matter systems. The experiments that can be carried out along the predictions of this research can come from either discipline and are expected to be relevant to both.The proposed research program will continue to promote the teaching and training of participating undergraduate and graduate students at both academic institutions. It will also continue to provide cutting edge research and learning opportunities to scientists (including postdoctoral and graduate students) at foreign institutions (the Research Institute of Solid State Physics and Optics of the Hungarian Academy of Sciences; Polytechnic University of Valencia). The results of this research will continue to be presented at international conferences (such as the 2002, 2005, 2008 Strongly Coupled Coulomb Systems Conferences) and disseminated to the public through the major outreach efforts made by the conference organizers

波士顿学院（BC; BC; Gabor J. Kalman博士，首席研究员）和佛蒙特大学（UVM； UVM；肯尼斯·I·戈尔登博士，主要研究人员）将继续进行有关强耦合等离子体的理论/计算研究的合作项目。等离子体的辅助强度由平均能量互动coulomb coulomb互动。当该比率超过统一的程度时，该比率在液相或固相，与在Tokamak融合设备和空间物理学中研究的传统气态形成鲜明对比的物质状态时，血浆被认为是强耦合的。 各种迷人的经典和量子等离子体系统，例如半导体量子孔中的分层电荷粒子系统，隔离的带电荷的颗粒，在低温陷阱，天体物理等离子体，天体内部的巨大的行星内部，白色的dwarf interiors，collas intrust的尘埃等等。 协作UVM/BC项目解决了强烈耦合等离子体动力学物理学的核心问题。 在该领域持续进展的两个一般目标。第一个目标是继续建立理论框架，以描述强耦合等离子体液体的动态。 第二个目标是这种理解的应用，在强烈耦合的等离子体的研究中获得了这种理解，这是在凝结物理学研究的最前沿的新型物理系统中。 现在已经认识到，半导体中量子库仑液体的各种固定表现出在强耦合等离子体动力学框架内可以理解的，同时还呈现了原始问题的一些独特后果（形成偶极子，超相反主义的石墨烯电子等类似的类似于石墨烯电子等）。 与这些新型半导体等离子体有关的集体模式（固有频率）和响应函数的分析是该项目的第二个主要目标。 该研究及其第一原理显微镜和模拟方法确定了各种强烈耦合的库仑系统的动态特性，将大大增加等离子体和凝结物理物理学的基本知识基础。 这项研究将继续通过强调控制等离子体和凝结物质系统行为的基础物理学的相似性，从而为这两个学科之间的边界领域提供新的见解。 可以在这项研究的预测中进行的实验可能来自学科，并有望与两者相关。拟议的研究计划将继续促进两家学术机构的参与本科生和研究生的教学和培训。 它还将继续为外国机构（匈牙利科学院固态物理和光学研究所；瓦伦西亚理工学院）的科学家（包括博士学位和研究所）提供尖端的研究和学习机会。 这项研究的结果将继续在国际会议上（例如2002，2005，2008强烈耦合库仑系统会议），并通过会议组织者的主要外展工作将其传播给公众