Quantum Metrology for Gravitational Wave Astronomy

• URL: http://arxiv.org/abs/2411.07313v1
• Date: Mon, 11 Nov 2024 19:15:04 GMT
• Title: Quantum Metrology for Gravitational Wave Astronomy
• Authors: Roman Schnabel, Nergis Mavalvala, David E. McClelland, Ping Koy Lam,
• Abstract summary: Einstein's General Theory of Relativity predicts that accelerating mass distributions produce gravitational radiation. These gravitational waves have not been directly detected to date, but are expected to open a new window to the Universe in the near future. Suitable telescopes are kilometre-scale laser interferometers measuring the distance between quasi free-falling mirrors.
• Score: 0.22369578015657954
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• Abstract: Einstein's General Theory of Relativity predicts that accelerating mass distributions produce gravitational radiation, analogous to electromagnetic radiation from accelerating charges. These gravitational waves have not been directly detected to date, but are expected to open a new window to the Universe in the near future. Suitable telescopes are kilometre-scale laser interferometers measuring the distance between quasi free-falling mirrors. Recent advances in quantum metrology may now provide the required sensitivity boost. So-called squeezed light is able to quantum entangle the high-power laser fields in the interferometer arms, and could play a key role in the realization of gravitational wave astronomy.

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