Speed matters. When an X-ray photon excites an atom or ion, making a core electron jump onto a higher energy level, a ...

After few femtoseconds, the double excited state decays by electron emission, generating a higher charge state. Compared to ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

In a discovery that brings a legendary quantum theory to life, physicists at Princeton University have directly observed Hofstadter’s butterfly — a fractal pattern in electron energy levels that was ...

At the subatomic level, particles interact not only with one another, but with the quantum fields inherent to space, both owing to the presence of charged sources and also to the quantum vacuum of ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Fukuoka, Japan - Technological progress is often driven by materials science. High-tech devices require "smart" materials that combine a range of properties. An impressive current example is carbon ...

Heating up A false-colour electron microscope image of the device, which creates entangled pairs of electrons. The green layers are graphene on top of the grey superconductor. The two quantum dots can ...

Half a century ago, Walter Henneberger wondered if it was possible to free an electron from its atom, but still make it stay around the nucleus. Scientists considered it was impossible. For the first ...