Theoretical Physics

理论物理

• 批准号: 0548498
• 负责人: John Kogut
• 金额: --
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-06-01 至 2007-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0548498&HistoricalAwards=false
• 关键词: Theoretical; Physics

The proposed research involves several projects. The first is to study QCD at nonzero temperature and chemical potential. This will be done by a combination of numerical and analytical approaches. Our methods will be used to test the Random Matrix Model used in three-color QCD. If the tests succeed, then the Random Matrix Model will be used to study QCD in the arena relevant to both neutron stars as well as in RHIC experiments. The proposal also addresses how to reformulate QCD in a way that will allow low mass pions and small quark masses. The approach will be to add irrelevant operator four fermi terms to make the chiral limit nonsingular. We propose to study the fluctuating loop picture of high-T superconductors by simulations of QED3. We propose also to investigate the possibility of developing algorithms for a quantum computer that will allow a better simulation of a quantum field theory.

拟议的研究涉及几个项目。第一是研究非零温度和非零化学势下的QCD。这将通过数值和分析方法相结合来完成。我们的方法将被用来检验三色QCD中的随机矩阵模型。 如果试验成功，那么随机矩阵模型将在与中子星相关的竞技场以及RHIC实验中被用来研究QCD。该提案还提出了如何以一种允许低质量π介子和小质量夸克的方式重新制定QCD。 方法是在四个费米项中加入无关算符，使手征极限非奇异。我们提出用QED 3模拟研究高温超导体的涨落环图。 我们还建议研究为量子计算机开发算法的可能性，这将允许更好地模拟量子场论。