Physics of Strong Disorder and Correlation

强无序与相关物理学

• 批准号: 0201069
• 负责人: Patrick Lee
• 金额: $ 27.3万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-07-01 至 2005-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0201069&HistoricalAwards=false
• 关键词: Physics; Strong; Disorder; Correlation

This award supports theoretical research and education in the area of strongly correlated electron systems. Research will focus on fundamental issues in two areas: high temperature superconductivity and quantum magnetism. The work in the former area has a more phenomenological bent includes the study of the why a magnetic moment appears with the addition of a nonmagnetic impurity and various issues related to transport properties in d-wave superconductors. Of particular interest is the physical origin of the experimentally observed scaling relation for the thermal hall conductivity and the appearance of a finite Nernst effect above the superconducting transition temperature. The study of quantum magnetism will emphasize understanding the role of quantum fluctuations. Of particular interest is the study of the Capriotti state and the conditions under which a spin liquid ground state might exist.%%%This award supports theoretical research in condensed matter physics with a focus on the physics of electrons in high temperature superconductors and other materials with strong electronic correlations. The research involves the creation of fundamental new knowledge and concepts in condensed matter theory that contribute to the formation of the pillars that support future technologies. More specifically, research will use the study of aspects of thermal and electronic transport properties in high temperature superconductivity to illuminate the fundamental nature of the strongly correlated state and that of the d-wave superconducting state that arises below the superconducting transition. Theoretical work is needed both to interpret experimental discoveries and to guide the search for new materials and new phenomena. This award also supports advanced training at the frontiers of condensed matter theory.***

该奖项支持强相关电子系统领域的理论研究和教育。研究将集中在两个领域的基本问题：高温超导性和量子磁性。前一个领域的工作具有更多的唯象倾向，包括研究为什么磁矩会随着掺杂杂质的增加而出现，以及与d波超导体中的输运性质有关的各种问题。特别感兴趣的是实验观察到的热霍尔电导率的标度关系的物理起源和超导转变温度以上的有限能斯特效应的外观。 量子磁学的研究将强调理解量子涨落的作用。特别感兴趣的是对Capriotti状态的研究，以及自旋液体基态可能存在的条件。该奖项支持凝聚态物理的理论研究，重点是高温超导体和其他具有强电子相关性的材料中的电子物理。 该研究涉及在凝聚态理论中创造基本的新知识和概念，这些知识和概念有助于形成支持未来技术的支柱。 更具体地说，研究将使用高温超导中的热和电子输运性质的研究来阐明强关联态和超导转变以下出现的d波超导态的基本性质。理论工作既需要解释实验发现，也需要指导对新材料和新现象的探索。该奖项还支持凝聚态理论前沿的高级培训。