引力波：感知宇宙的新窗口

演讲人：Rana Adhikari

时 间：2016年10月29日（周六）晚7点

地 点：清华大学大礼堂

考勤方式：学生卡刷卡签到

主 办：清华大学天体物理中心

协 办：清华大学国家大学生文化素质教育基地

清华大学基础工业训练中心

内容介绍：

In 1916, Albert Einstein predicted the existence of gravitational waves: vibrations of spacetime that travel throughout the universe at the speed of light. These vibrations are produced by the most cataclysmic events in the universe; exploding stars, the mergers of black holes, and the big bang itself. The waves travel unimpeded throughout the universe and offer a unique picture of these wonderful astrophysical laboratories.

For several decades, it was imagined that these waves either did not exist or were too weak to ever detect. For the last 45 years, teams of scientists have been developing a series of ever more sensitive detectors to be able measure these spacetime distortions from as far away as hundreds of millions of light years. A pair of 4 km long laser interferometers has now opened this new window on the universe. I will describe how our understanding of the quantum physics of the very, very small has allowed us to explore gravitational physics of the very, very large.

演讲人介绍：

Rana Adhikari is a Professor of Experimental Physics at the California Institute of Technology. He is a member of the LIGO Science Project team.He has been working on the goal of gravitational wave detection for 20 years. His focus is on the areas of precision measurement which relate to surpassing the fundamental physics limits in order to discover new phenomena related to gravity and quantum mechanics.

特别提示：从2013年4月11日起，由清华大学基础工业训练中心开设的《实验室科研探究》课程的部分讲座列入《文化素质教育讲座》课程。没有选修《实验室科研探究》相应教学单元的本科生可以按《文化素质教育讲座》课程选听讲座，请携带学生IC卡刷卡入场，入场时间为当日18:30。根据《北京市消防条例（2011修订）》相关规定，为确保安全，该场讲座本科生人数控制在400人，额满即止。