Dr. Thore Posske

I. Institut für Theoretische Physik, Universität Hamburg

Twisted quantum magnets and adatoms on superconductors

Recently, two fields advanced significantly towards constructing novel quantum matter. 

First, quantum magnetism in 1D was found to have a stable helical order in cold atoms. Second, disorder-free manipulation of atoms on superconductors can be used to engineer electronic subgap states.

I will present selected results in both fields and stimulate discussions how to bring both fields together. This includes how to construct topological quantum magnetic states, generalizing phantom states to arbitrary dimensions, and constructing a mid-spectrum condensates. In adatom systems, I will address efforts towards realizing Majorana bound states and the recent Machiba-Shibata state, a single spinful electronic level with proximity-induced superconductivity.