Exotic Two-dimensional Materials
Two-dimensional materials can be reduced to atomically thin sheets and reassembled in heterostructures to create novel devices of augmented functionality. At the König group, we specifically concentrate on the interplay of two-dimensional quantum magnets with metallic or superconducting two-dimensional materials. Most prominently, heterostructures involving candidate quantum spin liquids (i.e. strongly entangled quantum paramagnets) may allow access to novel experimental probes of ultra-quantum phases of matter, lead to exotic metals and superconductors, and, in the long run, may be a fruitful route to harvest quantum entanglement.
Quantum computing of, with, and for fermions
As anticipated early on by Richard Feynman, a main application of a working quantum computer is the simulation of many-electron problems in quantum materials and quantum chemistry. Approaching this goal within the ongoing NISQ era, at the König group we recently started to investigate quantum circuits emulating quantum many-body problems of correlated electrons and study the complexity of fermionic quantum many-body wave functions.