Researchers at ETH Zurich and the Paul Scherrer Institute demonstrated how quantum operations between superconducting qubits can be performed while correcting for bit-flip errors.Researchers at ETH Zurich and the Paul Scherrer Institute demonstrated how quantum operations between superconducting qubits can be performed while correcting for bit-flip errors.

Materials scientists at Saarland University are therefore working to develop environmentally friendly alternatives. By introducing finely dispersed iron oxide into tiny, highly porous, hollow carbon spheres developed by Professor Michael Elsaesser at the University of Salzburg, the Saarbrücken team has achieved some very promising results: higher storage capacities using materials that are both readily available and environmentally far less problematic. The results have now been published in the journal Chemistry of Materials.

A team of scientists led by Academician Professor Xiang Zhang, President and Vice-Chancellor of The University of Hong Kong (HKU) and Chair of Engineering and Physics, has made a major breakthrough by using a natural magnetic material called CrSBr to achieve negative refraction — without the need for complicated artificial structures. This discovery opens the door to ultra-compact lenses, super-high-resolution microscopes, and reconfigurable optical devices that can be controlled with magnets.

Hydrogen plays an important role in society’s energy transition. For the technology to be used on a broad scale, effective hydrogen sensors are required to prevent the formation of flammable oxyhydrogen gas when hydrogen is mixed with air. Now, researchers at Chalmers University of Technology, Sweden, can present a compact sensor that can be manufactured on a large scale and is well suited to the humid environments where hydrogen is to be found. Unlike today’s sensors, the new sensor performs better the more humid it gets. “The performance of a hydrogen gas sensor can vary dramatically from environment to environment, and humidity is an important factor. An issue today is that many sensors become slower or perform less effectively in humid environments. When we tested our new sensor concept, we discovered that the more we increased the humidity, the stronger the response to hydrogen became. It took us a while to really understand how this could be possible,“ says Chalmers doctoral student Athanasios Theodoridis, who is the lead author of the article in the journal ACS Sensors.

In a pair of new studies, ASU researchers and their colleagues show how DNA, the molecule of life, can be harnessed to faithfully store enormous volumes of data and provide powerful encryption.