Research in Theory of Elementary Particles and Cosmology

基本粒子理论与宇宙学研究

• 批准号: 0244728
• 负责人: Leonard Susskind
• 金额: $ 383.5万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-07-01 至 2008-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0244728&HistoricalAwards=false
• 关键词: Research; Theory; Elementary; Particles; Cosmology

The proposed research involves group research in Elementary Particle Theory and Cosmology. The PI's propose to investigate the experimental consequences of gravity becoming important at the TeV scale as a result of large extra dimensions. The PI's intend to investigate various possibilities for physics beyond the Standard Model. An extra-dimensional approach to the cosmological constant problem will be investigated. The new geometries that occur when one studies string vacua when flux is present will be explored. String theory cosmology and the problem of spacelike singularities in string theory will be studied. An attempt will be made to construct realistic inflationary models and a theory of dark energy in the context of supergravity, string theory and M-theory. Observational consequences of these models will be investigated. An attempt will be made to develop nonperturbative approaches to string theory that will allow one to understand cosmological singularities such as the Big Bang. The PI's intend to investigate supersymmetric Grand Unified Theories that arise from string theory and M theory compactifications using flux stabilization techniques. The PI's will attempt to understand how string theory can accommodate the observed acceleration of the universe. The PI's also intend to find realistic theories of electroweak symmetry breaking and physics beyond the standard model.

提议的研究涉及基本粒子理论和宇宙学的小组研究。PI的提议是调查重力在TeV尺度上由于大的额外维度而变得重要的实验结果。PI计划调查标准模型之外的各种物理可能性。我们将研究宇宙常数问题的一种超维方法。当有通量存在时，研究弦真空时出现的新几何形状将被探索。弦理论宇宙学和弦理论中的类空间奇点问题将被研究。尝试在超重力、弦理论和m理论的背景下构建现实的暴胀模型和暗能量理论。这些模型的观测结果将被研究。将尝试发展弦理论的非摄动方法，这将使人们能够理解宇宙奇点，如大爆炸。PI打算利用通量稳定技术研究由弦理论和M理论紧化产生的超对称大统一理论。PI将尝试理解弦理论如何能够适应观测到的宇宙加速度。PI还打算找到电弱对称性破缺的现实理论和超越标准模型的物理学。