Flux Compactification of M-theory, Cosmology and the Standard Model of Elementary Particles

M理论、宇宙学和基本粒子标准模型的通量紧化

• 批准号: 0552031
• 负责人: Melanie Becker
• 金额: $ 11.98万
• 依托单位: Texas A&M Research Foundation
• 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: 2005-09-01 至 2008-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0552031&HistoricalAwards=false
• 关键词: Flux; Compactification; theory; Cosmology; Standard

Flux Compactification of M-theory, Cosmology and the Standard Model of Elementary Particles PI: Melanie Becker Institution: University of Maryland One of the goals of this proposal is to construct phenomenologically realistic models that can explain the small and positive cosmological constant recorded by the WMAP data, supernova observations and the HST data. Explaining the value of the cosmological constant has been a challenging problem for theoretical physics since ancient times. String theory does now have the basic tools to address this question very precisely as will be suggested in this proposal. With the same precision it is possible to address cosmology, inflation and the structure of our current universe. A crucial ingredient to answer these questions is string theory and M-theory compactifications with non-vanishing fluxes. Several projects will be suggested along this direction. Due to the duality between supergravity and strongly coupled gauge theories, important issues such as confinement in QCD could in principle be naturally described in this context. The proposed work largely explores the 'landscape' of string theory, the space of dynamically interesting string compactifications. This is an area of growing and long-term significance in string theory. The PI explores in this proposal new types of compactifications, namely heterotic M-theory and non-Kahler, whereas most earlier work has focused on the IIB flux models (which the PI also helped pioneer).

m理论、宇宙学和基本粒子标准模型的通量紧化PI: Melanie Becker机构：马里兰大学本提案的目标之一是构建现象学上的现实模型，以解释WMAP数据、超新星观测和HST数据记录的小而正的宇宙常数。解释宇宙常数的值自古以来就是理论物理学的一个具有挑战性的问题。弦理论现在有了基本的工具来非常精确地解决这个问题，这将在本提案中提出。以同样的精度，它可以解决宇宙学，膨胀和我们当前宇宙的结构。回答这些问题的一个关键因素是具有不消失通量的弦理论和m理论紧化。沿着这个方向将提出几个项目。由于超引力和强耦合规范理论之间的对偶性，QCD中的约束等重要问题原则上可以在这种背景下自然地描述。提出的工作在很大程度上探索了弦理论的“景观”，即动态有趣的弦紧化空间。这是弦理论中一个不断发展和具有长期意义的领域。PI在这一提议中探索了新的紧化类型，即异质性m理论和非kahler理论，而大多数早期的工作都集中在IIB通量模型上（PI也帮助开创了这一模型）。