Page 13 - Atomic Physics News Today

 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 I...

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 -...

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...

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 worlds largest experimental thermonuclear reactor ITER. Researchers discovered new effects, which affect the energy flow in the reactor. The theoretical predictions were confi...

 E-Mail IMAGE: Physicists have developed a new method that enables emulation of complex calculations at lightning speed. This could yield new insights about the quantum properties of strongly interacting matter such as... view more  Credit: Illustration: Andreas Ekström and Yen Strandqvist/Chalmers University of Technology A calculation so complex that it takes twenty years to complete on a powerful desktop computer can now be done in one hour on a regular laptop. Physicist Andreas Eks...

 E-Mail IMAGE: View through a window of the interior of an ultra-high vacuum reactor where TiO2 nanotubes are decorated with CoO nanoparticles. We see the flame (plasma produced by laser ablation) that... view more  Credit: Christian Fleury (INRS) A research team from the Institut national de la recherche scientifique (INRS) has joined forces with French researchers from the Institute of Chemistry and Processes for Energy, Environment and Health (ICPEES), a CNRS-University of Strasbou...

 E-Mail IMAGE: Fig.2 Electron dynamics around a misoriented molecular defect. (a) STM image and snapshots obtained over an area including the defect indicated by the white arrow. Snapshots clearly show that electrons... view more  Credit: University of Tsukuba Tsukuba, Japan - A team of researchers from the Faculty of Pure and Applied Sciences at the University of Tsukuba filmed the ultrafast motion of electrons with sub-nanoscale spatial resolution. This work provides a powerful tool...

 E-Mail IMAGE: The inherent delay between the emission of the two types of electron leads to a characteristic ellipse in the analysed data. In principle, the position of individual data points around... view more  Credit: Daniel Haynes / Jörg Harms An international consortium of scientists, initiated by Reinhard Kienberger, Professor of Laser and X-ray Physics at the Technical University of Munich (TUM), several years ago, has made significant measurements in the femtosecond range at...

 E-Mail The experiment was performed at the Research Center for Nuclear Physics (RCNP) in Osaka. The research team, lead by scientists from TU Darmstadt and the GSI Helmholtz Center for Heavy-Ion Research, and from the RIKEN Nishina Center for Accelerator-Based Science, discuss the new findings in a contribution to the latest issue of the journal " Science". The strong interaction binds neutrons and protons together to atomic nuclei. The knowledge of properties of nuclei and their theoretical ...