Understanding the quantum mechanical behavior of electrons in solids is one of the most influential scientific discoveries that have shaped the age we live in. The mission of the Berg Research Group is to push this frontier further. Researchers in his group are interested in the physics that emerges from the interactions of a large number of quantum particles, with applications ranging from high temperature superconductivity to quantum information. They employ a large variety of analytical and numerical techniques, including methods borrowed from quantum field theory, quantum Monte Carlo simulations, and tensor network methods. Particular research topics include: topological phases of matter, strongly correlated electrons, superconductivity, periodically driven systems, and two-dimensional Van der Waals materials.