Research in Theory of Elementary Particles and Cosmology

基本粒子理论与宇宙学研究

• 批准号: 0756174
• 负责人: Leonard Susskind
• 金额: $ 404.2万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-07-01 至 2013-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0756174&HistoricalAwards=false
• 关键词: Research; Theory; Elementary; Particles; Cosmology

The Stanford High Energy Theory Group proposes a broad program of researchat the leading edge of theoretical physics. Elementary particle physics is poised to enter a new era as the Large Hadron Collider begins operation. Dimopoulos will continue his model building efforts to understand the data coming from this machine. Toward the same end Kachru and Silverstein will continue to investigate mechanisms of supersymmetry breaking, including distinctively stringy ones. They will also explore mediation mechanisms and other aspects of model building that are natural in string theory. Cosmology and especially inflation is a central interest of the Stanford group.An important topic will be to better understand metastable vacua in string theory and more generally the structure of the string landscape. This will include ideas building on the KKLT (Kachru, Kallosh, Linde, Trivedi) construction and work of Silverstein and collaborators. Linde, Shenker and Susskind will continue to study the puzzling phenomenon of eternal inflation. These studies will include work on the measure problem and on holographic definitions. Kachru, Kallosh and Linde will continue their efforts to build stringy models of slow roll inflation and to study the phenomenologicalconstraints on the gravitino mass and gravity wave production. Linde and Susskind will study the phenomenological consequences of a relatively small number of e-foldings of slow roll inflation. Shenker and Silverstein will continue to study resolutions of spacelike singularities like the big bang and the black hole singularity in the context of string theory. Dimopoulos will continue to explore how atom interferometer techniques can be used to construct novel gravity wave detectors and implement sharp tests of General Relativity. The basic structure of string theory has long been a focus of this group.Examples of activities in this direction include Silverstein?s further study of D-duality and Kallosh?s proposed work on attractors and black hole composites.As leaders in their fields, members of the Stanford group will continue to mentor graduate students and postdocs. They will also continue their efforts to communicate physics to the broader public. As in the past these efforts will include the design and development of courses aimed at non-physicists, giving public lectures, writing popular articles and books, and participating in the making of films and videos aimed at the general public.

斯坦福大学高能理论小组提出了一个广泛的研究计划，研究理论物理的前沿。随着大型强子对撞机开始运行，基本粒子物理学即将进入一个新时代。Dimopoulos将继续他的模型构建工作，以了解来自这台机器的数据。为了达到同样的目的，卡克鲁和西尔弗斯坦将继续研究超对称破缺的机制，包括特殊的弦破缺机制。他们还将探索调解机制和其他方面的模型建设是自然的弦理论。宇宙学，特别是暴胀是斯坦福大学研究小组的主要兴趣，一个重要的课题是更好地理解弦论中的亚稳真空，以及更一般的弦论结构。这将包括建立在KKLT（Kachru，Kallosh，Linde，Trivedi）建设和Silverstein及其合作者工作基础上的想法。林德、申克和萨斯金德将继续研究永恒暴胀这一令人困惑的现象。这些研究将包括测量问题和全息定义的工作。Kachru，Kallosh和Linde将继续努力建立慢卷膨胀的弦模型，并研究引力子质量和引力波产生的唯象约束。林德和萨斯坎德将研究相对少量的慢卷暴胀e折叠的现象学后果。申克和西尔弗斯坦将继续在弦论的背景下研究类空奇点的解析，如大爆炸和黑洞奇点。Dimopoulos将继续探索如何使用原子干涉仪技术来构建新的重力波探测器，并对广义相对论进行严格的测试。弦理论的基本结构一直是这个小组的焦点。在这个方向的活动的例子包括西尔弗斯坦？对D-对偶和Kallosh？作为各自领域的领导者，斯坦福大学小组的成员将继续指导研究生和博士后。他们还将继续努力向更广泛的公众传播物理学。与过去一样，这些努力将包括设计和开发针对非物理学家的课程，举办公开讲座，撰写流行文章和书籍，并参与制作针对公众的电影和视频。