Tag Archives: physicists

The high-pressure magnetic phase observed in iron trithiohypophosphate, a 2D material that transitions from an insulator to a metal when compressed, likely forms a precursor to superconductivity. The magnetic structure of FePS3. Image credit: Cavendish Laboratory. Iron trithiohypophosphate (FePS3), or magnetic graphene, belongs to a family of materials known as …

Physicists from the ATLAS (A Toroidal LHC ApparatuS) Collaboration at CERN’s Large Hadron Collider (LHC) have found first evidence of the Higgs boson decaying to a low-mass dilepton system (either an electron or a muon pair with opposite charge) and a photon. Known as Dalitz decay, this is one of …

Gravitational-wave detectors can be used to measure gravitational-field hair of extreme black holes, according to a paper published in the journal Physical Review D. Extreme Kerr black holes have gravitational hair that can be measured at finite distances and violates the uniqueness theorems. Image credit: Sci-News.com / Zdeněk Bardon / …

Spinning black holes store rotational energy that can be extracted; when a black hole is immersed in an externally supplied magnetic field, reconnection of magnetic field lines within the ergosphere can generate negative energy particles that fall into the black hole event horizon while the other accelerated particles escape stealing …

A team of physicists from the United States and Japan has experimentally observed a phenomenon called quantum oscillation in a two-dimensional topological insulator — monolayer tungsten ditelluride (WTe2). The team’s findings, published in the journal Nature, hint at the existence of an entirely new type of quantum particle — a …

An international team of experimental physicists from the University of Queensland and Nokia Bell Labs has generated time reversed optical waves with a device capable of independently controlling all of light’s classical degrees of freedom simultaneously. Mounaix et al. develop a new technique to demonstrate the time reversal of optical …

For most of their existence, stars are fuelled by the fusion of hydrogen into helium. Fusion proceeds via two processes that are well understood theoretically: the proton-proton (p-p) chain and the carbon-nitrogen-oxygen (CNO) cycle. Neutrinos that are emitted along such processes in the solar core are the only direct probe …

The Unruh effect was described by Stephen Fulling in 1973, Paul Davies in 1975, and William Unruh in 1976. Sometimes called the Fulling-Davies-Unruh effect, it suggests that if you fly through a quantum vacuum with extreme acceleration, the vacuum no longer looks like a vacuum: rather, it looks like a …

In a paper published this month in the journal Physical Review Letters, an international team of physicists described a new mechanism of dark matter production. Baker et al. described a new mechanism of dark matter production: if dark matter particles acquire mass during a first order phase transition, it is …

Controlled manipulation, storage, and retrieval of quantum information are essential for quantum communication and computing. Quantum memories for light, realized with cold atomic samples as the storage medium, are prominent for their high storage efficiencies and lifetime. A team of experimental physicists from the Johannes Gutenberg-Universität Mainz and Beihang University …