Results 1 to 10 of about 444,298 (341)

Correlation between birefringence and absorption mapping in large-size Sapphire substrates for gravitational-wave interferometry [PDF]

Scientific Reports, 2023
In high-sensitive laser interferometers, such as the gravitational-wave detector KAGRA, ultra-high-quality mirrors are essential. In the case of KAGRA, where cavity mirrors are cooled down to 20 K, large-size Sapphire crystals are used as the substrate ...
Simon Zeidler, Marc Eisenmann, Marco Bazzan, Pengbo Li, Matteo Leonardi   +4 more
doaj   +2 more sources

Gravitational wave detector response in terms of spacetime Riemann curvature [PDF]

Physical Response of Light-Time Gravitational Wave Detectors, Phys. Rev. D 90, 062002, 2014, 2013
Gravitational wave detectors are typically described as responding to gravitational wave metric perturbations, which are gauge-dependent and --- correspondingly --- unphysical quantities. This is particularly true for ground-based interferometric detectors, like LIGO, space-based detectors, like LISA and its derivatives, spacecraft doppler tracking ...
Finn, Lee Samuel, Koop, Michael J.
arxiv   +3 more sources

Core Payload of the Space Gravitational Wave Observatory: Inertial Sensor and Its Critical Technologies [PDF]

Sensors
Since Einstein’s prediction regarding the existence of gravitational waves was directly verified by the ground-based detector Advanced LIGO, research on gravitational wave detection has garnered increasing attention.
Shaoxin Wang, Dongxu Liu, Xuan Zhan, Peng Dong, Jia Shen, Juan Wang, Ruihong Gao, Weichuan Guo, Peng Xu, Keqi Qi, Ziren Luo   +10 more
doaj   +2 more sources

Attitude-Orbit Coupled Control of Gravitational Wave Detection Spacecraft with Communication Delays [PDF]

Sensors, 2023
In order to meet the position and attitude requirements of spacecrafts and test masses for gravitational-wave detection missions, the attitude-orbit coordination control of multiple spacecrafts and test masses is studied.
Yu Zhang, Yuan Liu, Jikun Yang, Zhenkun Lu, Juzheng Zhang   +4 more
doaj   +2 more sources

Testing general relativity with gravitational-wave catalogs: The insidious nature of waveform systematics [PDF]

iScience, 2021
Summary: Gravitational-wave observations of binary black holes allow new tests of general relativity (GR) to be performed on strong, dynamical gravitational fields.
Christopher J. Moore, Eliot Finch, Riccardo Buscicchio, Davide Gerosa   +3 more
doaj   +2 more sources

The surfing effect in the interaction of electromagnetic and gravitational waves. Limits on the speed of gravitational waves [PDF]

Phys.Rev.D77:124013,2008, 2008
In the current work we investigate the propagation of electromagnetic waves in the field of gravitational waves. Starting with simple case of an electromagnetic wave travelling in the field of a plane monochromatic gravitational wave we introduce the concept of surfing effect and analyze its physical consequences. We then generalize these results to an
A. G. Polnarev, A. G. Polnarev, B. S. Sathyaprakash, C. Misner, C. J. Hogan, C. M. Will, C. M. Will, D. Baskaran, H. Goldstein, J. D. Jackson, K. S. Thorne, L. D. Landau, L. P. Grishchuk, L. P. Grishchuk, L. P. Grishchuk, L. P. Grishchuk, L. P. Grishchuk, L. P. Grishchuk, M. M. Basko, V. B. Braginsky, V. B. Braginsky   +20 more
arxiv   +3 more sources

Design method for the structure of a gravitational wave detection telescope with low TTL noise [PDF]

Scientific Reports
As a critical payload of the gravitational wave detection interferometry system, the tilt-to-length (TTL) noise has a significant influence on the detection accuracy of the interferometry system.
Sijun Fang, Wentong Fan, Rui Zhang, Jian Luo, Bohong Li, Hongwen Hai, Yehao Cao, Lei Fan, Yong Yan   +8 more
doaj   +2 more sources

3D characterization of low optical absorption structures in large crystalline sapphire substrates for gravitational wave detectors [PDF]

Scientific Reports, 2021
Very high-quality sapphire substrates are key elements of the cryogenic Japanese gravitational interferometer KAGRA, in which they are used to build the main mirrors, working as the test masses to sense the gravitational waves.
Manuel Marchiò, Matteo Leonardi, Marco Bazzan, Raffaele Flaminio   +3 more
doaj   +2 more sources

Gravitational-wave asteroseismology with fundamental modes from compact binary inspirals [PDF]

Nature Communications, 2020
Independently measuring the tidal deformability and the fundamental oscillation mode (fmode) frequency enables tests of gravity and the nature of compact binaries.
Geraint Pratten, Patricia Schmidt, Tanja Hinderer   +2 more
doaj   +2 more sources

Multi-Physics and Multi-Objective Optimization for Fixing Cubic Fabry–Pérot Cavities Based on Data Learning

Applied Sciences, 2023
The Fabry–Pérot (FP) cavity is the essential component of an ultra-stable laser (USL) for gravitational wave detection, which couples multiple physics fields (optical/thermal/mechanical) and requires ultra-high precision.
Hang Zhao, Fanchao Meng, Zhongge Wang, Xiongfei Yin, Lingqiang Meng, Jianjun Jia   +5 more
doaj   +1 more source