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  Direct limits for scalar field dark matter from a gravitational-wave detector

Vermeulen, S. M., Relton, P., Grote, H., Raymond, V., Affeldt, C., Bergamin, F., et al. (2021). Direct limits for scalar field dark matter from a gravitational-wave detector. Nature, 600(7889), 424-428. doi:10.1038/s41586-021-04031-y.

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Vermeulen, Sander M., Author
Relton, Philip, Author
Grote, Hartmut1, Author              
Raymond , Vivien, Author
Affeldt, Christoph1, Author              
Bergamin, Fabio1, Author              
Bisht, Aparna1, Author              
Brinkmann, Marc1, Author              
Danzmann, Karsten1, Author              
Doravari, Suresh1, Author              
Kringel, Volker1, Author              
Lough, James1, Author              
Lück, Harald1, Author              
Mehmet, Moritz1, Author              
Mukund, Nikhil1, Author              
Nadji, Severin Landry1, Author              
Schreiber, Emil1, Author              
Sorazu , Borja, Author
Strain, Ken A.1, Author              
Vahlbruch, Henning1, Author              
Weinert, Michael1, Author              Willke, Benno1, Author               more..
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1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc,High Energy Physics - Phenomenology, hep-ph
 Abstract: The nature of dark matter remains unknown to date and several candidate particles are being considered in a dynamically changing research landscape. Scalar field dark matter is a prominent option that is being explored with precision instruments such as atomic clocks and optical cavities. Here we report on the first direct search for scalar field dark matter utilising a gravitational-wave detector operating beyond the quantum shot-noise limit. We set new upper limits for the coupling constants of scalar field dark matter as a function of its mass by excluding the presence of signals that would be produced through the direct coupling of this dark matter to the beamsplitter of the GEO\,600 interferometer. The new constraints improve upon bounds from previous direct searches by more than six orders of magnitude and are more stringent than limits obtained in tests of the equivalence principle by one order of magnitude. Our work demonstrates that scalar field dark matter can be probed or constrained with direct searches using gravitational-wave detectors and highlights the potential of quantum technologies for dark matter detection.

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 Dates: 2021-03-052021
 Publication Status: Published in print
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 Identifiers: arXiv: 2103.03783
DOI: 10.1038/s41586-021-04031-y
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Title: Nature
Source Genre: Journal
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Pages: - Volume / Issue: 600 (7889) Sequence Number: - Start / End Page: 424 - 428 Identifier: -