Attosecond Science: A New Era for Many-Body Physics

The properties and the functionality of materials and devices, or chemical reactions, are determined by the microscopic interaction of their building blocks, i.e., between electrons, holes, and nuclei. Thus, understanding the many-body interaction between these fundamental building blocks holds the key to advancing fundamental science and, at the same time, directly leads to applications. Attosecond science [1] now provides an entirely new view into the quantum many-body interaction [2] of these microscopic building blocks.