Detection of Gravitational Wave in LIGO and Significance Evaluation

Abstract

Gravitational wave detection plays crucial role in astrophysics and cosmology, which can prove the theoretical models as well as demonstrate the detail information in the universe. As a concept proposed based on general relativity, it has not been detected until the invention of the most advanced detectors, i.e., Laser Interferometer Gravitational-Wave Observatory (LIGO). In this paper, the state-of-art detection facility LIGO will be discussed in detail. To be specific, the detection principle of gravitational wave as well as the detection facility components and requirements will be illustrated. In addition, the significance of detecting gravitational wave will be clarified. On the path paved by pioneering physicists, this study looks further into the mechanism of the LIGO detection method and the significance of detection of gravitational wave. Moreover, the newest detection results are analyzed, and the corresponding improvements suggestions and future outlooks are presented and proposed accordingly. These results shed light on further exploration of gravitational wave detection.