Design of a speed meter interferometer proof-of-principle experiment

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Graef, C.; Barr, B. W.; Bell, A. S.; Campbell, F.; Cumming, A. V. et al.: Design of a speed meter interferometer proof-of-principle experiment. In: Classical And Quantum Gravity 31 (2014), Nr. 21, 215009. DOI: http://dx.doi.org/10.1088/0264-9381/31/21/215009

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Sum total of downloads: 154




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The second generation of large scale interferometric gravitational wave (GW) detectors will be limited by quantum noise over a wide frequency range in their detection band. Further sensitivity improvements for future upgrades or new detectors beyond the second generation motivate the development of measurement schemes to mitigate the impact of quantum noise in these instruments. Two strands of development are being pursued to reach this goal, focusing both on modifications of the well-established Michelson detector configuration and development of different detector topologies. In this paper, we present the design of the world's first Sagnac speed meter (SSM) interferometer, which is currently being constructed at the University of Glasgow. With this proof-of-principle experiment we aim to demonstrate the theoretically predicted lower quantum noise in a Sagnac interferometer compared to an equivalent Michelson interferometer, to qualify SSM for further research towards an implementation in a future generation large scale GW detector, such as the planned Einstein telescope observatory.
License of this version: CC BY 3.0
Document Type: article
Publishing status: publishedVersion
Issue Date: 2014-11-07
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
total perc.
1 image of flag of Germany Germany 138 89.61%
2 image of flag of United States United States 2 1.30%
3 image of flag of Ukraine Ukraine 2 1.30%
4 image of flag of Indonesia Indonesia 2 1.30%
5 image of flag of China China 2 1.30%
6 image of flag of Qatar Qatar 1 0.65%
7 image of flag of Lao People's Democratic Republic Lao People's Democratic Republic 1 0.65%
8 image of flag of Japan Japan 1 0.65%
9 image of flag of United Kingdom United Kingdom 1 0.65%
10 image of flag of Austria Austria 1 0.65%
    other countries 3 1.95%

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