In an international collaboration, researchers at the University of Stuttgart were able to detect quantum bits in two-dimensional materials for the first time. Nature Materials covers this in its May 6, 2021 issue.
Osaka University researchers studying maximally efficient packing showed that jamming transitions with random spheres follows universal rules. This work may help with industrial processes including glass annealing.
An international team of researchers led by physicists from the University of Oldenburg (Germany) has succeeded in generating an unusual quantum state in charge carrier complexes that are closely linked to light particles and located in ultrathin semiconductor sheets. The team reports in the journal Nature Materials that this process produces light similar to that of a laser. The phenomenon could be used to create the smallest possible solid-state lasers.
Like conductors of a spooky symphony, researchers at the National Institute of Standards and Technology (NIST) have "entangled" two small mechanical drums and precisely measured their linked quantum properties. Entangled pairs like this might someday perform computations and transmit data in large-scale quantum networks.
University of Delaware's Swati Singh is among a small group of researchers across the dark matter community that have begun to wonder if they are looking for the right type of dark matter. Singh, Jack Manley, a UD doctoral student, and collaborators at the University of Arizona and Haverford College, have proposed a new way to look for the particles that might make up dark matter by repurposing existing tabletop sensor technology.
2D superconductors have drawn considerable attention both for the fundamental physics they display as well as for potential applications in fields such as quantum computing. Although considerable efforts have been made to identify them, materials with high transition temperatures have been hard to find. Materials featuring both superconductivity and non-trivial band topology have proven even more elusive. A recent Nano Letters paper predicts just such a material in the easily exfoliable, topologically non-trivial semimetal W2N3.
When light hits certain molecules, it dislodges electrons that then move from one location to another, creating areas of positive and negative charge. This "charge transfer" is highly important in many areas of chemistry, photosynthesis and semiconductor devices and solar cells. A new study reveals how a molecule's structure changes as charge is redistributed, with some chemical bonds getting longer and some shorter, before finally relaxing back into its original state.
A new auroral phenomenon discovered by Finnish researchers a year ago is probably caused by areas of increased oxygen atom density occurring in an atmospheric wave channel. The speculative explanation offered by the researchers gained support from a new study.
Researchers at Tampere University Photonics Laboratory have demonstrated how two interfering photons can bunch into various shapes. These complex shapes are beneficial for quantum technologies, such as performing fast photonic quantum computations and safe data transfer. The method opens new possibilities also for creating enhanced measurement and sensing techniques.
Researchers in the Nanoscience Center of University of Jyväskylä in Finland and in the Guadalajara University in Mexico developed a method that allows for simulation and visualization of magnetic-field-induced electron currents inside gold nanoparticles. The method facilitates accurate analysis of magnetic field effects inside complex nanostructures in nuclear magnetic resonance measurements and establishes quantitative criteria for aromaticity of nanoparticles. The work was published 30.4.2021 as an Open Access article in Nature Communications.