Theoretical and Numerical investigations in classical and quantum gravity

经典和量子引力的理论和数值研究

• 批准号: 0554793
• 负责人: Luis Lehner
• 金额: --
• 依托单位: Louisiana State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-08-01 至 2007-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0554793&HistoricalAwards=false
• 关键词: Theoretical; Numerical; investigations; classical; quantum

This award supports several lines of investigation in classical and quantum general relativity with a common thread of numerical techniques. The particular focus will include the stability of the solution obtained from the numerical evolution of the Einstein equations when the constraints are violated, the study of initial conditions appropriate for numerical simulation of a binary system consisting of a neutron star and a black hole, and the implementation of a consistent discretization approach to quantum gravity. Some of these studies and the techniques developed through themwill allow accurate simulation of astrophysical sources of gravitational radiation for ground-based and space-based gravitational wave detectors now operating or under study. In addition, a complete, consistent approach to quantum gravity remains one of the most important unsolved problems in fundamental physics.

该奖项支持经典广义相对论和量子广义相对论中的几条研究路线，并提供了一条共同的数值技术线索。特别的焦点将包括当约束被违反时，从爱因斯坦方程的数值演化中获得的解的稳定性，研究适合于由中子星和黑洞组成的双星系统的数值模拟的初始条件，以及对量子引力实施一致的离散化方法。其中一些研究和通过这些研究开发的技术将使目前正在运行或正在研究中的地面和天基引力波探测器能够准确模拟引力辐射的天体物理来源。此外，完整、一致的量子引力方法仍然是基础物理学中最重要的悬而未决的问题之一。