For the first time, a team of physicists in the U.S. has clearly demonstrated a “helicon current drive” in a nuclear fusion experiment. Led by Jeff Lestz at General Atomics, San Diego, the team took advantage of the latest advances in tokamak technology to show that radio waves steered to travel around the donut-shaped device […]

Just as it is difficult for a camera to keep both a nearby flower and a distant mountain sharply focused at the same time, conventional optical microscopes face a similar challenge when imaging structures located at different depths inside the body. Tighter focusing of light improves spatial resolution, but at the same time reduces the […]

Some proteins that are linked to neurodegenerative diseases can form both liquid droplets and amyloid fibers. But how are these two states connected, and where do the fibers grow? Leiden physicists Liru Feng and Louise Jawerth have discovered a counter-intuitive mechanism.

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For the first time, researchers in Japan have directly mapped several components of the stress field surrounding an atomic-scale flaw in the crystal structure of diamond. Led by Tokuyuki Teraji at Japan’s National Institute for Materials Science, the team achieved its result using nitrogen-vacancy (NV) centers in diamond, whose spin states respond differently to stress […]