When you shine a flashlight into a glass of water, the beam bends. That simple observation, familiar since ancient times, ...

For almost a century, Heisenberg's uncertainty principle has stood as one of the defining ideas of quantum physics: a ...

This is a preview. Log in through your library . Abstract The single-particle spectral function measures the density of electronic states in a material as a function of both momentum and energy, ...

Marten Patt studied physics at RWTH Aachen University, and finished his diploma thesis on time- and laterally-resolved spin polarization in semiconductors in 2009. He then joined the group of Claus ...

Time-varying metamaterial: illustration of how a 2D photonic time crystal can amplify light waves. (Courtesy: Xuchen Wang/Aalto University) A major barrier to creating photonic time crystals in the ...