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Khabre desk
Recent reporting, analysis and explainers from the Physics desk.
science
Researchers compared two room-temperature 176Lu+ optical frequency references and measured a fractional frequency difference consistent with zero. Each reference had an evaluated systematic uncertainty near 1 × 10−19.
science
Researchers detected the low-energy nuclear resonance of thorium-229 using a continuous-wave laser and absorption measurements rather than slow fluorescence detection. The technique provides a faster spectroscopy and feedback method for developing a solid-state nuclear clock.
science
OpenAI says its most advanced AI model produced a mathematical result involving a singularity in the Navier–Stokes equations. The case highlights why continuum fluid models need molecular descriptions at very small scales.