Newly achieved precise control over light emitted from incredibly tiny sources, a few nanometers in size, embedded in two-dimensional (2D) materials could lead to remarkably high-resolution monitors and advances in ultra-fast quantum computing, according to an international team led by researchers at Penn State and Université Paris-Saclay.

Clove essential oil is a promising antibacterial substance. In a new study, researchers from Dongguk University explore a sustainable way to create carbon quantum dots (CQDs) from clove residue left after extracting essential oil. These CQDs were tested for their ability to form Pickering emulsions, which are more stable and have enhanced antibacterial properties compared to traditional emulsions using Polysorbate 80. Thus, the proposed emulsions are promising for food and cosmetic applications.

Researchers at ETH Zurich have developed a method that makes it easier to study interactions between electrons in a material. Using a moiré material consisting of twisted atomic layers they created an artificial crystal lattice in a neighbouring material.

Scientists at Yokohama National University (YNU), in collaboration with RIKEN and other institutions in Japan and Korea, have developed a novel method to control electron distribution in molecules using ultrafast terahertz pulses.

Making a step forward in this direction, researchers led by JILA and NIST Fellows and University of Colorado Boulder physics professors Jun Ye and Ana Maria Rey—in collaboration with scientists at the Leibnitz University in Hanover, the Austrian Academy of Sciences, and the University of Innsbruck—proposed practical protocols to explore the effects of relativity, such as the gravitational redshift, on quantum entanglement and interactions in an optical atomic clock. Their work revealed that the interplay between gravitational effects and quantum interactions can lead to unexpected phenomena, such as atomic synchronization and quantum entanglement among particles. The results of this study were published in Physical Review Letters.

For the first time, researchers have combined nanodiamonds in microdroplets of liquid for quantum sensing. The new technique is precise, fast, sensitive, and requires only small amounts of the material to be studied – helpful when studying trace chemicals or individual cells. The results were published in the journal Science Advances in December.

In a new development that could help redefine the future of technology, a team of physicists has uncovered a fundamental insight into the upper limit of superconducting temperature.

Working at nanoscale dimensions, billionths of a meter in size, a team of scientists led by the Department of Energy’s Oak Ridge National Laboratory revealed a new way to measure high-speed fluctuations in magnetic materials. Knowledge obtained by these new measurements, published in Nano Letters, could be used to advance technologies ranging from traditional computing to the emerging field of quantum computing.

IonQ, a leader in the quantum computing and networking industries, today announced a significant milestone in the development of high-speed, mixed-species quantum logic gates for trapped-ion quantum computing and networking. The findings further the company’s momentum in driving scalable, high-fidelity quantum networking and distributed quantum computing. Detailed in a new paper written by IonQ scientists and co-authored with Australian National University, the research shows a novel approach to achieving an orders-of-magnitude increase in physical gate speed of two-qubit gates between different atomic species.

Three RIKEN physicists have discovered how tiny tubes of carbon spit out light that is more energetic than the light shone on them. This finding could help to exploit the process in applications such as solar power and biological imaging.