Interferometric gravitational wave detectors

Gravitational wave detection has now entered the era in which signals are being found. It is timely, therefore, to review the current detectors and how they work. This review focuses on the dramatic arc that links the earliest clear understanding of gravitational wave detection with the current generation of detectors. I will also discuss the prospects for expansion of the global network of gravitational wave detectors, with special attention to the role of LIGO-India.

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PROBLEMS OF GLOBAL NETWORKS OF GRAVITATIONAL DETECTORS

International Journal of Modern Physics D ◽

10.1142/s021827189500003x ◽

1995 ◽

Vol 04 (01) ◽

pp. 51-62

Author(s):

E.K. KUCHIK ◽

V.N. RUDENKO

Keyword(s):

Computer Simulation ◽

Gravitational Wave ◽

Global Networks ◽

Gravitational Wave Detection ◽

Wave Detection ◽

The World ◽

Gravitational Wave Detectors ◽

The Creation

We describe the network of gravitational wave detectors which now exist in the world: Stanford-Louisiana-Pert-Geneva-Moscow. A computer simulation of a gravitational wave detection is performed. Proposals for the creation of a global observational gravitational wave service are made.

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Low Power Cusped Field Thruster Developed for the Space-Borne Gravitational Wave Detection Mission in China

Applied Sciences ◽

10.3390/app11146549 ◽

2021 ◽

Vol 11 (14) ◽

pp. 6549

Author(s):

Hui Liu ◽

Ming Zeng ◽

Xiang Niu ◽

Hongyan Huang ◽

Daren Yu

Keyword(s):

Low Power ◽

Gravitational Wave ◽

Attitude Control ◽

High Efficiency ◽

Experimental Investigations ◽

Attitude Control System ◽

Gravitational Wave Detection ◽

Wave Detection ◽

Wide Range ◽

Institute Of Technology

The microthruster is the crucial device of the drag-free attitude control system, essential for the space-borne gravitational wave detection mission. The cusped field thruster (also called the High Efficiency Multistage Plasma Thruster) becomes one of the candidate thrusters for the mission due to its low complexity and potential long life over a wide range of thrust. However, the prescribed minimum of thrust and thrust noise are considerable obstacles to downscaling works on cusped field thrusters. This article reviews the development of the low power cusped field thruster at the Harbin Institute of Technology since 2012, including the design of prototypes, experimental investigations and simulation studies. Progress has been made on the downscaling of cusped field thrusters, and a new concept of microwave discharge cusped field thruster has been introduced.

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China’s first step towards probing the expanding universe and the nature of gravity using a space borne gravitational wave antenna

Communications Physics ◽

10.1038/s42005-021-00529-z ◽

2021 ◽

Vol 4 (1) ◽

Author(s):

Keyword(s):

Gravitational Wave ◽

Hubble Constant ◽

Gravitational Wave Detector ◽

Expanding Universe ◽

Satellite Mission ◽

Gravitational Wave Detection ◽

Wave Detection ◽

Wave Detector ◽

Wave Antenna ◽

Gravitational Wave Antenna

AbstractIn this perspective, we outline that a space borne gravitational wave detector network combining LISA and Taiji can be used to measure the Hubble constant with an uncertainty less than 0.5% in ten years, compared with the network of the ground based gravitational wave detectors which can measure the Hubble constant within a 2% uncertainty in the next five years by the standard siren method. Taiji is a Chinese space borne gravitational wave detection mission planned for launch in the early 2030 s. The pilot satellite mission Taiji-1 has been launched in August 2019 to verify the feasibility of Taiji. The results of a few technologies tested on Taiji-1 are presented in this paper.

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