Phys. Rev. Focus26, 25 (2010) – Published December 17, 2010
According to simulations, ultrashort electron pulses could serve as probes of the rapid motion of atomic or molecular electrons, such as the “breathing” of an excited atom or the shuttling of an electron between atoms in a molecule.
A theoretical model and its experimental realization in a cold atomic gas pin down the nature of the criticality for a particular realization of the three-dimensional metal-insulator Anderson transition.