We are the Cluster of Excellence ctd.qmat – Complexity, Topology, and Dynamics in Quantum Matter, dedicated to exploring the quantum materials of the future. Our emblem is the donut – a symbol of the deep connection between physics and topological concepts that explain novel – topological – states of matter. They are particularly robust against external perturbation, opening the door to new and transformative technologies.

Founded as ct.qmat in 2019, we are jointly supported by two universities – Julius-Maximilians-Universität (JMU) Würzburg and Technische Universität (TU) Dresden – and funded through the German Excellence Strategy of the Federal and State Governments. In 2026, ctd.qmat was approved for a second funding period. The addition of the letter “d” marks a new phase in our research, highlighting quantum dynamics as a central theme in many-body physics.