A fundamental link between two counterintuitive phenomena in spin glasses— reentrance and temperature chaos—has been mathematically proven for the first time. By extending the Edwards–Anderson model to include correlated disorder, researchers at Science Tokyo and Tohoku University provided the first rigorous proof that reentrance implies temperature chaos. The breakthrough enhances understanding of disordered systems and could advance applications in machine learning and quantum technologies, where controlling disorder and errors is crucial.

Scientists from Shibaura Institute of Technology have developed a power-free acoustic testing system that uses the sound of bursting bubble wrap as an impulse source. The system can detect foreign objects in pipes with a 2% error margin using wavelet-based sound analysis. This eco-friendly, low-cost approach eliminates the need for specialist equipment, making on-site inspections safer and easier, even in flammable environments.

The mechanical properties of biological fluids can act as early indicators of disease, reflecting subtle physiological and pathological changes. However, current technologies face challenges in achieving high-throughput measurements, which limits their broader application in clinical diagnostics. To address this issue, the researchers developed a laser-emission vibrational microscopy technique based on whispering gallery mode laser, enabling rapid, high-throughput analysis of fluid mechanical properties. The method demonstrated strong potential for large-scale and efficient screening of hyperlipidemia.

In this study, we introduced parity transformation alone into metamaterial design. By pairing arbitrary asymmetric meta-atoms with their unique parity-inverted counterparts, they can be utilized to construct parity metamaterials. Under the joint protection of parity transformation and reciprocity, these metamaterials maintain undistorted transmitted wavefronts across ultrabroad frequency ranges.

Scientists have developed a novel fluorotellurite glass fiber that dramatically shrinks the size of ultrafast mid-infrared laser systems, a critical tool for science and industry. This new fiber, just centimeters long, replaces meter-long predecessors while offering superior stability and efficiency. The breakthrough paves the way for compact, robust laser sources operating beyond the 4 μm wavelength, opening new possibilities in spectroscopy, environmental sensing, and medical imaging.