U.S.-China Cooperative Research (Physics): Search for Gravitational Radiation

这是一个合作项目的延续， Peter F.斯坦福大学的迈克尔逊和En.ke 中山大学引力物理研究所 中国广州。 该项目始于1985年， 由国家科学基金会和中国国家教育委员会主办。 引力辐射的直接探测仍然是 引力物理学研究的最重要目标， 实验物理学中最具挑战性的问题之一。 重力波的探测不仅是一个基本的 对物理学的重要性，但将开辟一个重要的新的 宇宙的天文窗口 共振质量检测器 已经在几个机构开发， 斯坦福大学和中山大学。 斯坦福大学探测器 已经被用于巧合实验， 到目前为止，引力通量的最低上限 辐射 根据合作计划， 斯坦福大学和中山大学在过去五年中， 进行了符合实验，技术 关于大型低温探测器的信息已经被 交流，最近，先进的调查， 天线材料和隔振技术 温度已经进行。 在拟议的研究中，研究人员将继续 开发改进的探测器技术，主要是在 振动隔离和材料研究领域，承担 修复和升级4K探测器的合作努力 在斯坦福大学，交换有关其他引力的信息 有共同兴趣的物理实验， 最早的机会，进行另一个巧合 寻找引力辐射

This is a continuation of a collaborative project between Peter F. Michelson of Stanford University and He En.ke of the Institute of Gravitational Physics of Zhongshan University in Guangzhou, China. This project, which began in 1985, is sponsored by NSF and the Chinese State Education Commission. The direct detection of gravitational radiation is still the most important goal of research in gravitational physics and one of the most challenging problems in experimental physics. The detection of gravity waves would not only be of fundamental importance to physics, but would open up an important new astronomical window on the universe. Resonant.mass detectors have been under development at several institutions including Stanford and Zhongshan universities. The Stanford detector has been utilized in coincidence experiments that have set the lowest upper limits to date on the flux of gravitational radiation. Under the cooperative program between the Stanford and Zhongshan groups during the past five years, a coincidence experiment has been conducted, technical information about large.scale cryogenic detectors has been exchanged, and most recently, investigations of advanced antenna materials and vibration isolation techniques at low temperatures have been conducted. In the proposed study, the investigators will continue to develop improved detector technology, principally in the areas of vibration isolation and materials studies, undertake a collaborative effort to repair and upgrade the 4 K detector at Stanford, exchange information about other gravitational physics experiments in which there is mutual interest, and at the earliest opportunity, carry out another coincidence search for gravitational radiation.