Superstring Theory, Black Hole Physics and Quantum Gravity

超弦理论、黑洞物理和量子引力

• 批准号: 0703017
• 负责人: Wafic Sabra
• 金额: $ 0.5万
• 依托单位: American University of Beirut
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-10-01 至 2008-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0703017&HistoricalAwards=false
• 关键词: Superstring; Theory; Black; Hole; Physics

Recently,considerable progress has been made in the study of string theories.It has been realized that superstring theory has a web of duality symmetries relatingnonperturbative effects to perturbative ones. The picture emerging is that there exists afundamental theory, M-theory, that perturbatively, looks like string theory, butnonperturbatively has a very rich structure which includes symmetries relatingperturbative excitations to solitons. Another recent developmenthas been Maldacena's conjectured equivalence between string theory on anti-de Sitterspaces and gauge field theories living on the boundary of these spaces. This ADS/CFTequivalence gave more importance to the study of gravitational anti-de Sitterconfigurations as they provide a tool to the study of quantum gauge field theoriesimportant for particle physics. The main focus of this proposal is: a) to finda complete classification of supersymmetric gravitational backgrounds in variousspacetime dimensions and to understand better the ADS/CFT correspondence and theintricate relation between geometry and supersymmetry. b) to develop ourunderstanding of the nonperturbative theory underlying string theory, and incorporatethe new developments in the study of the phenomenological implications of string theoryto gravitational physics, particle physics and cosmology. The broader implications ofthis proposal are that it will lead to collaboration between string theorists and differentialgeometry. Also the work will take place at the Center for Advanced mathematicalScience at the University of Beirut which will become a Major Center for collaborationsamong scientists in the Middle East.NATIONAL SCIENCE FOUNDATIONDiary NoteProposal:0703017 PI Name:Sabra, WaficPrinted from eJacket: 02/28/07 Page 1 of 1

最近，在弦理论的研究中取得了很大的进步。已经意识到，超弦理论具有与扰动效应相关的双重性对称性网络。图片出现的是，存在着扰动的典型理论，看起来像字符串理论，但没有扰动地具有非常丰富的结构，其中包括与孤儿相关的对称性激发。另一个最近的发展是马尔达娜（Maldacena）在反de节安置上的弦理论和生活在这些空间边界上的仪表场理论之间的猜想。该广告/cFtorquensions对重力抗DE安静仪的研究更为重要，因为它们为粒子物理学的量子量规域理论研究提供了一种工具。该提案的主要重点是：a）在各种半居期维度中找到超对称引力背景的完整分类，并更好地理解几何和超对称性之间的ADS/CFT对应关系和发射关系。 b）发展我们对非扰动理论基础理论的理解，并将新的发展纳入了弦乐理论对引力物理学，粒子物理和宇宙学的现象学意义的研究。这一建议的更广泛的含义是，它将导致弦理论和差异测定学之间的协作。此外，这项工作将在贝鲁特大学的高级数学学中心举行，该中东将成为中东合作科学家的主要中心。《国家科学基金会》基金会的震撼：0703017 PI名称：Sabra，Sabra，waficprint of Ejacket：02/28/07 Page 1 of 1 of 1 of 1 of 1 of 1 of 1 of 1 of 1 of 1 of 1 of 1 of 1 of 1 of Ejacket：02/28/07 Page 1 of 1 of 1 of 1 of 1 of 1