NONTECHNICAL SUMMARY Advances in quantum technologies and in our understanding of fundamental quantum phenomena are increasingly driven by synergies between two key areas of theoretical science. The first, quantum information theory, explores how quantum mechanics can enhance the storage, transmission, and processing of information, while the second, quantum many-body physics, investigates the collective behavior that can emerge in systems of many interacting quantum particles. Important developments in both fields often involve a deepening understanding of quantum entanglement, a correlation between particles which classical physics is unable to describe. Recent breakthroughs in both disciplines—new techniques for protecting quantum information and fresh insights into how complex quantum systems evolve—present an opportunity for renewed interdisciplinary focus. This project will aim to discover and characterize new phases of quantum matter that emerge from the synergy of these developments, and that may offer novel ways of storing and protecting information. Unlike traditional phases of matter, which are characterized by how particles are arranged or locally-correlated, these phases are defined by the way that their collective quantum entanglement is organized. This research has the potential to both advance an understanding of fundamental phenomena and enable the development of future quantum technologies. This research will be combined with the training of und