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Gravitation Physics and Relativistic Astrophysics

引力物理学和相对论天体物理学

基本信息

批准号：
2110463
负责人：
Eanna Flanagan
金额：
$ 48万
依托单位：
Cornell University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2021
资助国家：
美国
起止时间：
2021-07-15 至 2024-06-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2110463&HistoricalAwards=false
关键词：
Gravitation Physics Relativistic Astrophysics

项目摘要

This award funds theoretical research in several different topics in relativistic astrophysics and general relativity. One focus is the exploration of newly discovered conservation laws involving black holes, and their implications for deep and poorly understood issues in quantum gravity such as the information loss paradox discovered by Stephen Hawking. A second focus is on tests of general relativity and on sources of gravitational radiation that have been detected by the Laser Interferometer Gravitational Wave Observatory (LIGO) and that might be detected by future space based detectors. Theoretical studies of sources of gravitational waves funded by this award will be useful to aid detection of signals from black holes and other sources, and also to aid in their interpretation. Gravitational wave studies can tell us about the nature of gravity, properties of black holes, and properties of the early Universe.In more detail, the principal research topics of this award are: (i) The development of methods to compute the gravitational waveforms from point particles inspiralling into spinning black holes, using a combination of analytical and numerical approaches; (ii) Generalizing the mathematical formalism of Wald and Zoupas to develop a comprehensive description and understanding of conservation laws involving soft hair on black holes, and (iii) investigating the consequences of these laws for the quantum evaporation of black holes and the ultimate fate of information that falls into black holes.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该奖项资助了相对论天体物理学和广义相对论中几个不同主题的理论研究。其中一个重点是探索涉及黑洞的新发现的守恒定律，以及它们对量子引力中深奥而鲜为人知的问题的影响，比如斯蒂芬·霍金发现的信息丢失悖论。第二个重点是广义相对论的检验和激光干涉仪引力波天文台（LIGO）已经探测到的、未来空间探测器可能探测到的引力辐射源。由该奖项资助的引力波来源的理论研究将有助于探测来自黑洞和其他来源的信号，并有助于对其进行解释。引力波研究可以告诉我们引力的本质、黑洞的特性和早期宇宙的特性。更详细地说，该奖项的主要研究课题是：(i)利用分析和数值方法相结合的方法来计算点粒子注入旋转黑洞的引力波形；（ii）推广Wald和Zoupas的数学形式，以全面描述和理解涉及黑洞软毛的守恒定律；（iii）研究这些定律对黑洞量子蒸发的影响以及落入黑洞的信息的最终命运。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。