Advances in quantum sensing have led to breakthroughs in detecting gravitational waves, with atomic interferometry and optical lattices emerging as promising approaches. Laser interferometers, such as LIGO, have successfully detected stochastic gravitational wave backgrounds and supermassive black hole mergers. However, technical challenges must be overcome before these sensors can be used for practical detection. Researchers are exploring new materials with improved thermal noise properties to enhance detector sensitivity. Quantum measurement techniques, including squeezed light, are also being developed to boost sensitivity. Additionally, magnetometers using dynamical decoupling and noise spectroscopy have achieved unprecedented precision, while optomechanical sensors show promise for precision metrology and detecting biomarkers.
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