Nonequilibrium phenomena in quantum many-body systems with long-range interactions

The focus of this thesis work is on the role of long-range interactions in the nonequilibrium coherent quantum dynamics. I have explored a number of settings in which long-range interactions allow for phenomena which do not possess a counterpart in equilibrium. The results contained in this thesis contribute to establish long-range interactions as a source of anomalous nonthermal behavior in quantum many-particle systems. In particular, the two parts of the thesis discuss two relative underlying mechanisms, which involve long-range interactions in different ways.