2021 Fiscal Year Annual Research Report
Developing new tools to search for dark matter
| Project/Area Number |
20K14460
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| Research Institution | The University of Tokyo |
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Principal Investigator |
Stadnik Yevgeny 東京大学, カブリ数物連携宇宙研究機構, 特任助教 (60866797)
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| Project Period (FY) |
2020-04-01 – 2022-03-31
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| Keywords | Dark matter / Atomic clock / Quantum sensor |
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| Outline of Annual Research Achievements |
Research was undertaken on the possibility of detecting relativistic bosonic waves that originate from sources which are initially non-relativistic. It was found that terrestrial experiments can in principle be sensitive to such relativistic waves even when the astrophysical sources are located quite far away from Earth. However, depending on the model of bosons considered, detection on Earth may be complicated due to screening of such bosonic waves close to Earth's surface. In this case, significantly more sensitive approaches would involve the use of space-based detectors. The use of networks of detectors containing spatially-separated nodes would allow for unambiguous confirmation of extra-terrestrial signals from passing relativistic bosonic waves and the location of the sources.
Further research was undertaken to appraise the feasibility of networks of quantum sensors (including ground- and space-based networks) in searches for new physics. It was concluded that such networks offer significant opportunities in searches for dark matter and the broader dark sector. For example, the use of a network of atomic clocks can boost the sensitivity to dark matter compared with a single atomic-clock node, as well as provide valuable information about the spatio-temporal correlation function. Space-based atomic clocks, e.g. on-board the International Space Station or GPS satellites, can provide an enormous advantage over analogous experiments on Earth in models of dark scalar fields that exhibit screening near Earth's surface.
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[Journal Article] Optical Atomic Clock aboard an Earth-orbiting Space Station (OACESS): Enhancing searches for physics beyond the standard model in space2021
Author(s)
Vladimir Schkolnik, Dmitry Budker, Oliver Fartmann, Victor Flambaum, Leo Hollberg, Tigran Kalaydzhyan, Shimon Kolkowitz, Markus Krutzik, Andrew Ludlow, Nathan Newbury, Christoph Pyrlik, Laura Sinclair, Yevgeny Stadnik, Ingmari Tietje, Jun Ye, and Jason Williams
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Journal Title
A Research Campaign White Paper submitted for the National Academies of Sciences, Engineering and Medicine "Decadal Survey on Biological and Physical Sciences Research in Space 2023-2032"
Volume: -
Pages: -
Int'l Joint Research
