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이번 학기 콜로퀴움은 학교의 권고를 따라, 사회적 거리두기 단계와 연계하여 온라인 혹은 오프라인(온라인 방송 병행)으로 운영될 예정입니다.

열번째 강연에는 성균관대학교 물리학과 이경하 교수님을 모시고 콜로퀴움을 개최하오니, 학과 구성원 여러분의 많은 참여를 부탁 드립니다.

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1. Title: The era of gravitational waves, and the science that makes it possible

2. Speaker: 이  경  하  교수님
(성균관대학교 물리학과)

3. Date & Time: Dec. 2. (Wed.) 2020.  4:30 PM

4. Place: Natural Science 1,  Room No. 31214

5. Abstract: According to the Theory of General Relativity, gravitational waves are ripples in spacetime caused by the asymmetrical acceleration of mass. 100 years since Einstein first predicted the existence of gravitational waves, the Advanced LIGO detectors succeeded in first direct detection in 2015. The most important contribution that made the detections possible was the upgrade to the Advanced LIGO, including a quadruple pendulum system, and monolithic fused silica final stage suspensions. To further improve the sensitivity of the detectors, world-wide collaboration works on various experimental and modelling are under progress to investigate. Among all research efforts, enhances suspension system investigation and atomic structure study for the coatings will be briefly introduced in this talk. As a general introduction of experimental gravitational wave research, instrumental science side of the LIGO detectors will be discussed.