Ultrafast extreme ultraviolet and X-ray free-electron lasers are set to revolutionize many domains such as bio-photonics and materials science, in a manner similar to optical lasers over the past two ...

A study shows electrons escape solids only through quantum doorways that appear in layered materials, changing how we understand emission.

When an intense laser pulse hits a stationary electron, it performs a trembling motion at the frequency of the light field.

Nonlinear optical dynamics—intensity-dependent response of light upon interaction with materials under high-intensity light ...

Researchers present new experimental and theoretical results for the bound electron g-factor in lithium-like tin which has a much higher nuclear charge than any previous measurement. The experimental ...

Scientists at TU Wien found that electrons need specific “doorway states” to escape solids, not just energy. The insight ...

Many atomic nuclei possess a magnetic field similar to that of the Earth. However, at the surface of a heavy nucleus, such as lead or bismuth, it is trillions of times stronger than the Earth’s field ...

Résumé of the many-electron problem -- The occupation number representation (second quantization) -- The Hartree-Fock method and the free-electron gas -- Plasma oscillations in a free-electron gas -- ...

Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences, Vol. 291, No. 1427 (Apr. 26, 1966), pp. 537-555 (19 pages) The nuclear magnetic relaxation and the ...