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; 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.

提出的研究涉及基础粒子理论和宇宙学领域的研究。 PI提议研究重力的实验后果在TEV量表上由于较大的额外维度而变得重要。 PI旨在调查除标准模型之外的物理学的各种可能性。将研究针对宇宙常数问题的额外维度。 将探索在存在通量时进行弦真空的新几何形状。将研究弦理论宇宙学和弦理论中的空间奇异性问题。将尝试在超级实力，弦理论和M理论的背景下构建现实的通货膨胀模型和黑暗能源的理论。将研究这些模型的观察后果。将尝试开发非扰动的方法来弦理论，这将使人们能够理解诸如大爆炸之类的宇宙学奇异性。 PI打算研究使用通量稳定技术由字符串理论和M理论压缩产生的超对称性大统一理论。 PI将尝试了解弦理论如何适应观察到的宇宙加速度。 PI还打算在标准模型之外找到Electroweak对称性破坏和物理的现实理论。