Physik

A researcher using the Lean formalisation language has uncovered a fundamental flaw in a influential 2006 physics paper on the two Higgs doublet model. Joseph Tooby-Smith at the University of Bath made the discovery while building a library of verified physics theorems. The original authors have acknowledged the error and plan to issue an erratum.

24. März 2026 Von KI berichtet

At the American Physical Society Global Physics Summit in Denver, Colorado, thousands of researchers are using AI chatbots to simplify complex talks. The event has sparked intense discussions on whether artificial intelligence will transform physics research. Speakers presented contrasting views on AI's potential and limitations.

Physicists on the LHCb experiment at CERN's Large Hadron Collider have detected the Xicc+ particle, a baryon containing two charm quarks and one down quark. This heavier analogue of the proton resolves a 20-year-old mystery from a previous experiment. The discovery, confirmed at over 7 sigma significance, highlights upgrades to the LHCb detector.

17. März 2026 Von KI berichtet

Scientists led by Fumihiro Naokawa have developed a new method to measure cosmic birefringence more precisely, a subtle rotation in the polarization of the cosmic microwave background. Their analysis indicates the birefringence angle may exceed the earlier estimate of 0.3 degrees due to phase ambiguity. The findings, published in Physical Review Letters, could aid in probing new physics related to dark matter and dark energy.

Researchers at the University of Cambridge have observed electrons crossing boundaries in solar materials in just 18 femtoseconds, driven by molecular vibrations. This discovery challenges traditional theories on charge transfer in solar energy systems. The findings suggest new ways to design more efficient light-harvesting technologies.

3. März 2026 Von KI berichtet

Scientists at the University of Basel and ETH Zurich have reversed the polarity of a specialized ferromagnet with a focused laser beam, without heating the material. This achievement, detailed in Nature, combines electron interactions, topology, and dynamical control in a single experiment. The method hints at future light-based electronic circuits on chips.