The QSDF addresses a range of research questions from overlapping themes

Materials for Quantum Devices

A wide range of quantum technologies rely on states with long lifetimes. Josephson quantum circuits and semiconductor spin qubits are frontrunners in the race to realise a universal quantum computer. Optimising the materials and interfaces is critical for reaching threshold performance for error correction. QSDF users are engaged in optimising superconducting thin films for quantum circuits, measuring noise in silicon substrates, and harnessing topological materials with innate immunity.

Microwave-to-optical transduction

Quantum computers based on microwave signals in superconducting circuits operate at cryogenic temperatures, but the best means of transmitting information over long distances is by utilising optical fibres at room temperature. We are developing devices capable of coherently bridging cryogenic microwave circuits and room temperature optical telecommunications.