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Dark matter from the depths of the universe

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Cataclysmic astrophysical occasions equivalent to black gap mergers may launch power in surprising kinds. Unique low-mass fields (ELFs), for instance, may propagate by area and trigger feeble indicators detectable with quantum sensor networks such because the atomic clocks of the GPS community or the magnetometers of the GNOME community. These are the outcomes of theoretical calculations undertaken by a analysis group together with Dr. Arne Wickenbrock of the PRISMA+ Cluster of Excellence at Johannes Gutenberg College Mainz (JGU) and the Helmholtz Institute Mainz (HIM). They’re notably attention-grabbing within the context of the seek for darkish matter, as low-mass fields are thought to be promising candidates for this unique type of matter.

From multi-messenger astronomy to the seek for darkish matter

Multi-messenger astronomy entails the coordinated remark of disparate indicators that stem from the identical astrophysical occasion. For the reason that first detection of gravitational waves with the LIGO interferometer a number of years in the past, the curiosity on this area has expanded enormously and it has yielded an incredible quantity of latest data originating from the depths of the universe. “When gravitational waves are generated someplace in area and detected on Earth, quite a few telescopes now give attention to the occasion to report numerous indicators, equivalent to these within the type of electromagnetic radiation, as an example,” explains Arne Wickenbrock. “We requested ourselves what would occur if a part of the noticed power launched by such occasions was additionally radiated within the type of unique low-mass fields or ELFs. Would we have the ability to detect them with our current networks of quantum sensors?”

The scientists’ calculations have confirmed that this could possibly be the case for sure parameters. “We additionally reasoned that such fields, when radiated, would trigger a attribute frequency signature within the networks,” provides Arne Wickenbrock. “The sign can be much like the sound of a passing siren, sweeping from excessive to low frequencies.” The researchers have two specific networks in thoughts: the worldwide GPS community of atomic clocks and the GNOME community, which is comprised of a large number of magnetometers distributed across the globe. On the idea of the anticipated energy of the sign, the GPS system ought to at the moment be delicate sufficient to detect ELFs. The work group of JGU Professor Dmitry Budker at HIM, along with different groups, is at the moment upgrading the GNOME community, and on completion this must also be delicate sufficient to look at such occasions.

Potential ELFs are of specific significance within the seek for darkish matter. Though we all know this unusual type of matter should exist, no person but is aware of what it’s manufactured from. Specialists are contemplating and researching a complete vary of potential particles that may theoretically qualify as candidates. Among the many most promising present candidates are extraordinarily mild bosonic particles, which can be seen when it comes to a traditional area oscillating at a selected frequency. “Thus, within the depths of the universe, darkish matter within the type of ELFs could also be created through the merger of two black holes,” concludes Arne Wickenbrock. “Precision quantum sensor networks, in flip, may operate as ELF telescopes, including one other necessary aspect to the toolbox of multi-messenger astronomy.”

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Materials offered by Johannes Gutenberg Universitaet Mainz. Be aware: Content material could also be edited for model and size.


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