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A gravitational wave observatory operating beyond the quantum shot-noise limit

Chua, Sheon; Inta, Ra; Lam, Ping Koy; McClelland, David; Miller, John; Mow-Lowry, C; Mullavey, Adam; Scott, Susan M; Shaddock, Daniel; Slagmolen, Bram; Stefszky, Michael; Wade, Andrew; Abadie, J; Abbott, B; Araya, M; Billingsley, G; Blackburn, James Kent; Ehrens, P; Etzel, T; Kozak, D; Mailand, K; Maros, E; Heefner, J; Hosken, Dave; Howell, E; Ivanov, A


Around the globe several observatories are seeking the first direct detection of gravitational waves (GWs). These waves are predicted by Einstein's general theory of relativity and are generated, for example, by black-hole binary systems. Present GW detectors are Michelson-type kilometre-scale laser interferometers measuring the distance changes between mirrors suspended in vacuum. The sensitivity of these detectors at frequencies above several hundred hertz is limited by the vacuum...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: Nature Physics
DOI: 10.1038/NPHYS2083


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