Low Noise Suspensions and Readout Systems for Advanced LIGO and Its Enhancements

用于先进 LIGO 的低噪声悬架和读出系统及其增强功能

• 批准号: 0967049
• 负责人: Stanley Whitcomb
• 金额: $ 62.09万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-07-01 至 2014-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0967049&HistoricalAwards=false
• 关键词: Low; Noise; Suspensions; Readout; Systems; Low; Noise; Suspensions; Readout; Systems

This award supports the research program of Professor Vladimir Braginsky and his group at the Moscow State University (MSU) in Moscow, Russia. Braginsky and his group are members of the LIGO Scientific Collaboration (LSC) and they propose to continue research on topics of great interest to the LIGO project to which the group has made outstanding contributions over the years. They will perform both experimental and theoretical research in two main areas of great interest to the LIGO project. The experimental portion of their research will focus on: 1) identifying and measuring the excess noise (noise of non-thermal origin) due to mirror coatings, electric charging of the mirrors, and interaction of mirrors and the surrounding structures; 2) in-depth searches for new unknown sources of noise of nonlinear origin; and 3) methods for modeling and controlling dynamic instabilities that can appear in the interferometers due to coupling of their high-Q mechanical and optical degrees of freedom caused by the high optical power in the interferometer arms. They will also continue theoretical and experimental investigations of novel optical topologies as well as new methods of quantum measurements that might be applied in the future to Advanced LIGO to allow operation at sensitivities below the Standard Quantum Limit. While most of the research will be carried out at MSU, Braginsky and his colleagues will be in frequent close contact with LIGO Laboratory and LSC members through visits and regular reports.

Progress in the supported research program will contribute to the success of Advanced LIGO in opening the new gravitational wave window on the universe. The members of the MSU group are committed to combining first-rate education with their research. The faculty members in the group will continue to incorporate LIGO concepts and research results into their technical lectures for students and for colleagues working in other fields of science; they will continue to involve undergraduate and graduate students in their theoretical and experimental research; and they will continue to give public lectures about LIGO and the LSC's research, including lectures aimed at high school students.

该奖项支持弗拉基米尔·布拉金斯基（Vladimir Braginsky）教授的研究计划及其在俄罗斯莫斯科的莫斯科州立大学（MSU）的小组。 Braginsky及其小组是Ligo Scientific Collaboration（LSC）的成员，他们建议继续研究该集团多年来为该集团做出杰出贡献的Ligo项目的主题研究。他们将在Ligo项目引起的两个主要领域进行实验和理论研究。他们的研究的实验部分将重点放在：1）由于镜涂层，镜子的电荷以及镜子的相互作用以及周围结构的相互作用，识别和测量过多的噪声（非热源的噪声）； 2）深入搜索非线性起源噪声的新未知来源； 3）用于建模和控制动态不稳定性的方法，这些方法可能会出现在干涉仪中，这是由于其高Q机械和光学自由度的耦合，这是由干涉仪臂中的高光功率引起的。 他们还将继续对新型光学拓扑结构以及新的量子测量方法进行理论和实验研究，这些方法可能会在将来应用于晚期Ligo，以使其在敏感性以下的敏感性以下。 尽管大多数研究将在MSU进行，但Braginsky及其同事将通过访问和定期报告经常与Ligo实验室和LSC成员进行密切接触。＆＃8232;＆＃8232;＆＃8232;＆＃8232;＆＃8232;在支持的研究计划中的进步将有助于在开放新的Gravitation Waver Waver Winder上，为该大学的新坟墓窗口打开了新的Gravitation Waver窗口。 MSU集团的成员致力于将一流的教育与他们的研究相结合。该小组的教职员工将继续将LIGO概念和研究结果纳入其技术讲座，并为在其他科学领域工作的同事和同事；他们将继续让本科生和研究生参与其理论和实验研究。他们将继续进行有关Ligo和LSC研究的公开演讲，包括针对高中生的讲座。