Researchers from the Institute of Cosmos Sciences of the University of Barcelona present a microscopic theory of lattice quantum droplets which explains the formation of a new type of quantum droplets that has been experimentally observed in ultracold atomic systems.
Scientists are able to selectively knockout nucleons and preformed nuclear clusters from atomic nuclei using high-energy proton beams. In an experiment the existence of preformed helium nuclei at the surface of several tin isotopes could be identified in a reaction. The results confirm a theory, which predicts the formation of helium clusters in low-density nuclear matter and at the surface of heavy nuclei.
Scientists at the Institute of Physics of the University of Tartu have found a way to develop optical quantum computers of a new type. Central to the discovery are rare earth ions that have certain characteristics and can act as quantum bits. These would give quantum computers ultrafast computation speed and better reliability compared to earlier solutions. The University of Tartu researchers Vladimir Hizhnyakov, Vadim Boltrushko, Helle Kaasik and Yurii Orlovskii published the results of their research in the scientific journal Optics Communications.
Tsukuba University scientists describe the diffusion of sound in disordered materials, such as glass, using a new mathematical model. This work may lead to stronger and cheaper displays for touchscreen devices.
A new study, led by a theoretical physicist at Berkeley Lab, suggests that never-before-observed particles called axions may be the source of unexplained, high-energy X-ray emissions surrounding a group of neutron stars.
Scientists from Osaka University, The University of Queensland, and the Faculty of Engineering at the National University of Singapore have created polymer-coated nanodiamonds that can be absorbed into cells. Based on changes in their fluorescence properties, the internal thermal conductivity of the cell can be measured, which may lead to new heat treatments that attack cancer cells.
A breakthrough that has implications for molecular biology, pharmacology and nanotechnologies. The fields of application are many. Identifying the mechanisms behind neurodegenerative processes in some proteins, for example, can help limit their proliferation. Understanding how a protein takes on a certain shape can open the way to use the nanomachines that nature has designed to cut, edit or block damaged or defective genes. Their study was published in the international academic journal Physical Review Letters
The reproductive cycle of viruses requires self-assembly, maturation of virus particles and, after infection, the release of genetic material into a host cell. New physics-based technologies allow scientists to study the dynamics of this cycle and may eventually lead to new treatments.
Tsukuba University scientists show that the effectiveness of hydrogen-producing metal catalysts protected by graphene depends on the ability of protons to penetrate into the inner metallic surface. This work may lead to widely available hydrogen-powered cars.
Novel calculations have enabled the study of nearly 700 isotopes between helium and iron, showing which nuclei can exist and which cannot. In an article published in Physical Review Letters, scientists from TU Darmstadt, the University of Washington, the Canadian laboratory TRIUMF, and the University of Mainz report how they simulated for the first time using innovative theoretical methods a large region of the chart of nuclides based on the theory of the strong interaction.