Physics

by Zhao Weiwie; Hou De, Hefei Institute of Physical Sciences, Chinese Academy of Sciences Design and realization of internal ferromagnetic polar metallic state. Credit: Hou De Researchers have designed a new oxide material, Ca3Co.3O8, through atomically precise manipulation of crosslinked oxides. It demonstrated a remarkable combination of properties—ferromagnetism, polar distortion, and metallicity—which shines the spotlight…

Classical and quantum algorithms applied to the LABS problem. Credit: Advances in science (2024). DOI: 10.1126/sciadv.adm6761 In a new letter in Advances in scienceresearchers at JPMorgan Chase, the US Department of Energy’s (DOE) Argonne National Laboratory, and Quantinuum have demonstrated clear evidence of a quantum algorithmic speedup for the quantum approximate optimization algorithm (QAOA). This…

An example spectrum from MMT-Hectochelle for a member of Theia 456 (Gaia DR3 191357324369704448) in black and the corresponding MINESweeper fit to the spectrum in purple. The residuals are shown in the upper panel. Credit: Tregoning et al., 2024. Using ESA’s Gaia satellite and the MMT Observatory, astronomers have investigated a special stream of stars…

Credit: Nano Letters (2024). DOI: 10.1021/acs.nanolett.4c00694 Lenses are used to bend and focus light. Normal lenses rely on their curved shape to achieve this effect, but physicists from the University of Amsterdam and Stanford University have made a flat lens just three atoms thick that relies on quantum effects. This type of lens could be…