Physics
Researchers create an ‘atomic movie’ showing how atoms roam before a radiation-driven decay
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Scientists at the Fritz Haber Institute of the Max Planck Society and international collaborators say they have reconstructed a real-time “movie” of atoms moving for up to a picosecond before an electron-transfer-mediated decay (ETMD) event, showing that nuclear motion and geometry can strongly influence when the decay occurs and what it produces.
Scientists at the Helmholtz-Zentrum Dresden-Rossendorf have discovered previously unseen Floquet states inside extremely small magnetic vortices using minimal energy from magnetic waves. This finding, which challenges prior assumptions, could link electronics, spintronics, and quantum technologies. The results appear in Science.
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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.
Physicists have identified the role of carbon-containing molecules in determining charge polarity during particle collisions in volcanic ash clouds. This discovery explains the triboelectric effect that leads to volcanic lightning. The finding comes from experiments with silicon dioxide particles.
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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.
Researchers at the University of Texas at Austin have observed a sequence of exotic magnetic phases in an ultrathin material, validating a theoretical model from the 1970s. The experiment involved cooling nickel phosphorus trisulfide to low temperatures, revealing swirling magnetic vortices and a subsequent ordered state. This discovery could inform future nanoscale magnetic technologies.
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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.
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