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 E-Mail IMAGE: A team from the Max Planck Institute in Heidelberg excites nuclei of iron atoms with a flash of X-ray light and then sends a second such flash onto the sample... view more  Credit: MPI for Nuclear Physics From atomic clocks to secure communication to quantum computers: these developments are based on the increasingly better control of the quantum behaviour of electrons in atomic shells with the help of laser light. Now, for the first time, physicists at the Max Planck Institute for Nuclear Physics in Heidelberg have succeeded in precisely controlling quantum jumps in ...

University of Tsukuba researchers calculated the electronic structure of topological insulators excited by laser beams and found that massless states can be generated. This work may lead to a major advance in computer technology with circuits that generate less heat.

 E-Mail The new method works without extremely high temperatures, is therefore more energy-efficient and has a significantly higher recovery rate (approx. 96 per cent of the starting material) than established processes. These findings will be published on 17 February 2021 in the scientific journal Nature. Mechanical recycling vs. chemical recycling "The direct re-utilization of plastics is often hampered by the fact that, in practice, mechanical recycling only functions to a limited degree - because the plastics are contaminated and mixed with additives, which impairs the properties of the...

Credit: Microwave Nano-Electronics Lab, UC Riverside. RIVERSIDE, Calif. -- Materials having excess electrons are typically conductors. However, moiré patterns -- interference patterns that typically arise when one object with a repetitive pattern is placed over another with a similar pattern -- can suppress electrical conductivity, a study led by physicists at the University of California, Riverside, has found. In the lab, the researchers overlaid a single monolayer of tungsten disulfide (WS 2) on a single monolayer of tungsten diselenide (WSe 2) and aligned the two layers against each other...

Credit: Peter the Great St.Petersburg Polytechnic University The energy of the future lies in the area of the controlled thermonuclear fusion. The scientific group from Peter the Great St.Petersburg Polytechnic University (SPbPU), headed by Professor Vladimir Rozhansky, is directly involved in the establishment of the world's largest experimental thermonuclear reactor ITER. Researchers discovered new effects, which affect the energy flow in the reactor. The theoretical predictions were confirmed by the experiments on two tokamaks. The research results were published in the scientific jo...