(Public Lecture) Emergent Phenomena in Quantum Materials

 

Systems consisting of a large number of constituents may feature the emergence of complex structures with entirely new characteristics, even when each component individually follows very simple rules. Particularly intriguing such emergent phenomena occur in materials in which quantum physics plays a decisive role also at macroscopic length scales. In these quantum materials, strong electronic correlations and/or topological properties can stabilize fascinating exotic phases of matter. Dr. Lukas Janssen will review our search for such collective phenomena in metals, semimetals, and correlated insulators. This includes interacting electron systems in which nontrivial topology emerges from correlations, frustrated magnets that realize quantum entangled ground states, such as spin liquids, as well as quantum critical systems. The study of materials that are characterized by an interplay of topology and frustration, as well as quantum criticality, provides a promising approach towards various overarching goals of current quantum condensed matter physics, including the discovery and classification of new states of matter, the understanding of matter out of equilibrium, or the establishment of the relation to quantum information.

Related link: https://quantummc.xyz/study-group/