A research group at the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences (CAS) presented an analysis of the proton mass radius in Physical Review D on May 11. The proton mass radius is determined to be 0.67 ± 0.03 femtometers, which is obviously smaller than the charge radius of the proton.
University of Chicago Asst. Prof. Mark Levin and his team have discovered a way to create new molecules by cutting nitrogen atoms from molecules.
In a paper published in Modern Physics Letters A, researchers at the University of Georgia, USA, use high-resolution optical data to probe the nature of relativistic spacetime in rotating frames. Relativistic transformations describe fundamental attributes of spacetime. The predictions of the four major rotational transformations were compared with high-resolution published optical data. This analysis reveals the transformation that accurately describes relativity in rotating frames, thus defining the basic spacetime structure.
Quantum mechanics can be used to create more stable and more easily produced organic solar cells. These are the findings of new research from the University of Gothenburg.
A novel technique for studying vortices in quantum fluids has been developed by physicists writing in Nature Communications. Turbulence in quantum systems, for example in superfluid helium 4, takes place on microscopic scales, and so far scientists have not had tools with sufficient precision to probe eddies this small. But now the Lancaster team, working at temperature of a few thousandths of a degree above absolute zero, has harnessed nanoscience to allow the detection of single quantum vortices.
Very thin layers of organic stabiliser residue in metal nanoparticle (MNP) inks are behind a loss of conductivity in 3D printed materials and electronic devices, according to the findings of a new study by the University of Nottingham and NPL (National Physical Laboratory).
Publication in Nature Photonics: new ultra-stable, high-power cavity solitons revealed. This new type of hybrid and universal pulse, discovered by researchers at the OPERA-Photonics laboratory of the Université libre de Bruxelles, could lead to major advances in many fields such as high-precision clocks.
A research team led by Prof. LI Chuanfeng and Prof. ZHOU Zongquan from University of Science and Technology of China extended the storage time of the optical memories to over one hour. It broke the record of one minute achieved by German researchers in 2013, and made a great stride towards the application of quantum memories.
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.