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One of the greatest damn mysteries of physics: The most precise astronomical test of electromagnetism yet by Michael Murphy November 11, 2022
"Physicists really want one thing: a situation where our current understanding of physics breaks down. New physics. A signal that cannot be explained by current theories. A signpost for the theory of everything.
The trouble is, it's hard to know where to look. Our current theories can't guide us."
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Gravitational wave detectors to search for dark matter by Lisa Zyga, Phys. org. August 16, 2018
"As the physicists explain in their paper, if dark photons have a very light mass, then they can be considered to behave like an oscillating background field, with the oscillation frequency determined by their mass. Gravitational wave detectors could potentially detect these oscillations because the oscillations may affect test objects placed in the gravitational wave detectors. For example, if two test objects located at different positions in the detector experience different displacements, this difference may be due to the relative phase of the dark photon field's oscillations at the different positions."
New era in the quest for dark matter by the University of Amsterdam, October 5, 2018
"However, despite much effort, none of the new particles proposed to explain dark matter have been discovered. In a review that was published in Nature this week, physicist Gianfranco Bertone (UvA) and Tim Trait (UvA and UC Irine) argue that the time has come to broaden and diversify the experimental effort, and to incorporate astronomical surveys and gravitational wave observations in the quest of the nature of dark matter.
Bertone and Tait in particular point towards astronomical surveys, where tiny effects in the shapes of galaxies, of the dark matter halos around them, and of the gravitational bent light coming around them, can be observed to learn moore about the potential nature of dark matter. In addition, they mention the new method of observing gravitational waves, successfully carried out for the first time in 2016, as a very useful tool to study black holes - either as dark matter candidates themselves, or as objects with a distribution of other dark matter candidates around them."
Dark matter may be older than the big bang, study suggests by Johns Hopkins University. August 8, 2019
Using a new, simple mathematical framework, the study shows that dark matter may have been produced before the Big Bang during an era known as the cosmic inflation when space was expanding very rapidly. The rapid expansion is believed to lead to copious production of certain types of particles called scalers. So far, only one scalar particle has been discovered, the famous Higgs boson.
"We do not know what dark matter is, but if it has anything to do with any scalar particles, it may be older than the Big Bang. With the proposed mathematical scenario, we don't have to assume new types of interactions between visible and dark matter beyond gravity, which we already know is there," explains Tenkanen.
New theory on the origin of dark matter by Lito Vilisoni Wilson, University of Melbourne, October 19, 2020
"Our proposed mechanism suggests that the dark matter abundance may have been determined in a cosmological phase transition," sai Dr. Michael Baker, a postdoctoral research fellow at the University of Melbourne and on of the authors.
"The phase transitions are expected to have taken place in the early universe and can be similar to bubbles of gas forming in boiling water. We show that it is natural to expect dark matter particles to find it very difficult to enter these bubbles, which gives a new explanation for the amount of dark matter observed in the universe."
New theory suggests dark matter can create new dark matter from regular matter by Bob Yirka, Phys.org. November 9, 2021
In the early days, everything was close together making it easy for dark matter to come into contact with regular matter and convert it. But as time wore on, things moved farther and farther away as part of the expansion - and that made instances of dark matter coming across regular matter rarer. This expansion slowed the conversion of regular matter to dark matter, leaving us with the amount that is believed to exist today.
What if the black hole at the center of the Milky Way was actually a mass of dark matter? by Bob Yirka, Phys. org. June 2, 2021
"The researchers in this new effort suggest the reason G2 was able to survive its journe past Sagittarius A*, was because Sagittarius A* is not a black hole - it is a mass of dark matter. To come to this conclusion, they created a simulation of the Milky Way, where Sagittarius A* was replaced by a mass of dark matter and then let it run. In so doing, they found the Milky Way could run pretty much the same way it would if there were a black hole at its center.
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- Behold, The First Direct Images of the Cosmic Web in The Dark Reaches of The Universe Space29 September 2023. By Michelle Starr
- The Quantum Field of Virtual Potential and Probability (QFVPP): Its Meaning and Purpose
- Astronomers confront massive black hole at the heart of the Milky Way, Sagittarius A* by National Science Foundation. January 13, 2022
- The Case for Dark Matter has Strengthened by Don Lincoln January 6, 2023
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