E-Mail
IMAGE: a) Energy levels used to achieve SCC. b) A schematic diagram of SCC readout. c) The excitation spectrum of the nitrogen-vacancy (NV) center used here at cryogenic temperature of 8?K.. view more
Credit: ZHANG Qi et al.
The team led by Professor DU Jiangfeng and Professor WANG Ya from the Chinese Academy of Sciences (CAS) Key Laboratory of Microscale Magnetic Resonance of the University of Science and Technology of China put forward an innovative spin-to-charge conversion method to achieve high-fidelity readout of qubits, stepping closer towards fault-tolerant quantum computing.
Quantum supremacy over classical computers has been fully exhibited in some specific problems, yet the next milestone, fault-tolerant quantum computing, still requires the accumulated logic gate error and the spin readout fidelity to exceed the fault-tolerant threshold. DU s team has resolved the first requirement in the nitrogen-vacancy (NV) center system [
E-Mail
IMAGE: Water is detrimental to electronic devices because it easily causes short circuits and accidents, such as overheating/ignition. By coating electronic circuits with cellulose nanofibers (CNFs), it is possible to prevent. view more
Credit: Osaka University
Osaka, Japan - Most electronic devices aren t waterproof, much to your irritation if a sprinkler suddenly sprays you while you re talking outside on your cellphone. Some electronics can be made at least water-resistant by, for example, using special glues to fuse outer components together. Flexible electronics are another story. Their sealant materials must be able to bend, yet with current technology it s inevitable that eventually such a sealant will crack or separate from the device and there goes your water-resistant coating.
Credit: Professor Wonho Choe, KAIST.
A study by KAIST researchers revealed that an ionized gas jet blowing onto water, also known as a plasma jet , produces a more stable interaction with the water s surface compared to a neutral gas jet. This finding reported in the April 1 issue of
Nature will help improve the scientific understanding of plasma-liquid interactions and their practical applications in a wide range of industrial fields in which fluid control technology is used, including biomedical engineering, chemical production, and agriculture and food engineering.
Gas jets can create dimple-like depressions in liquid surfaces, and this phenomenon is familiar to anyone who has seen the cavity produced by blowing air through a straw directly above a cup of juice. As the speed of the gas jet increases, the cavity becomes unstable and starts bubbling and splashing.
Grain boundaries (GBs) in perovskite solar cells (PSCs) have been found to be detrimental to the device performance. Scientists in Hong Kong developed a unique approach by modifying the perovskite GBs with flakes of high-mobility 2-D materials, which can conduct holes from the GBs to hole transport layers in the PSCs and make the GBs hole channels in the devices. This work presents a cost-effective strategy for improving the performance of PSCs by using high-mobility 2-D materials.