Category: Quantum Physics
Research demonstrates new type of ferromagnetism with completely different alignment of magnetic moments
In the moiré material produced at ETH, the electron spins are disordered if there is exactly one electron per lattice site (left). As soon as there are more electrons than…
The quark model: A personal perspective
The idea that protons and neutrons were composed of even smaller particles, with non-integral electric charges, was proposed in 1963/64 by Andre Petermann, George Zweig and Murray Gell-Mann, who dubbed…
Tracking down quantum fluctuations of the vacuum to explore the limits of physics
The X-ray beam from the world’s largest X-ray laser, the European XFEL, only becomes as clearly visible as in the photo in complete darkness and with an exposure time of…
Unlocking the secrets of spin with high-harmonic probes
Credit: Pixabay/CC0 Public Domain Deep within every piece of magnetic material, electrons dance to the invisible tune of quantum mechanics. Their spins, akin to tiny atomic tops, dictate the magnetic…
Study leverages chiral phonons for transformative quantum effect
Chiral phonons excited by the circularly polarized terahertz light pulses generate ultrafast magnetization in cerium fluoride. Fluorine ions (red, fuchsia) are set into motion by circularly polarized terahertz light pulses…
Acquitting a physicist accused of ‘obscurantism’
This is the third page of Bohm’s letter to Einstein dated 14 November 1954 containing a paragraph on the infinite structure of reality. Courtesy of the Birkbeck College Archives. Credit:…
