Sunday is upon us again and it’s time to summarize what has been going on in the world of physics this week. As always, subscribe to our newsletter to receive these news and other useful stuff every week.
Now when the Higgs boson is found and confirmed, naturally, scientists are trying to tackle some of the big mysteries in physics using the famous particle. In a recent paper in Physical Review Letters, physicists Géraldine Servant at CERN, the Autonomous University of Barcelona, and CEA Saclay in France, and Sean Tulin at the University of Michigan in Ann Arbor aim to explain the origin of dark matter in the early universe using the Higgs.
“In the very early Universe, the Higgs particle was distinct from its antiparticle. We show that an asymmetry between Higgs and anti-Higgs might have been the missing link connecting the densities of visible and dark matter, which observationally are quite similar,” Géraldine Servant said about the new paper.
Step after step scientists tackle the mystery of dark matter
Physicist Frank Wilhelm-Mauch and his research team at Saarland University have developed a new mathematical model for a microscopic test lab that could provide a deeper insight into the world of quantum physics. Such a test system will enable the simultaneous study of a hundred light photons and their quantum entanglement, which is much more than it was previously possible. They are the first group worldwide to undertake such studies using a specially constructed lattice of nanostructures that is able to refract light more strongly than existing natural materials.
Dark matter, which greatly outweighs normal matter in the universe, is a great challenge to physicists. Even though nobody knows what dark matter is, there are many theories that aim to explain it. Most of these theories aim to detect dark matter by exploiting certain detectable features that this mysterious form of matter could possess. Now scientists at MIT with help from their colleagues came up with an experiment that could rule out some of the competing theories.
The idea of the experiment is to search for an exotic particle, which is similar to photons, yet it has a mass. Experiment known as DarkLight will search for this particle, energy of which is postulated by one of the competing theories.