Ion Cavity Optical Networks
We are a research group in the Department of Physics at the University of Oxford, developing the next generation of networked ion trap quantum computers.
Realising scalable, modular quantum networks.
Research in our group spans multiple themes, from network node design to quantum error correction.
Building scalable, reliable quantum network nodes
Our mission is to build scalable, reliable multi-node quantum networks. Engineering modular ion trap nodes with integrated microcavities will advance both the size and speed of our quantum networks.
Reliable, reproducible ion traps
Achieving the scaling offered by the quantum network architecture requires modular, manufacturable network nodes. We are developing macroscopic, three-dimensional ion traps out of laser-etched fused silica.
High-finesse microcavities
Maximising our entanglement rate requires the development of high-finesse microcavities. These require the production of superpolished mirrors, which we are fabricating using a combination of focused ion beam (FIB) milling and thermal annealing.
Integrated optics
Ensuring the optical delivery to the ion remains both scalable and reliable necessitates a move away from table optics. We are developing a refractive microlens wafer that will facilitate all optical delivery and fluorescence collection for each node.
Quantum error correction and mitigation
Realizing the full potential of quantum computers requires achieving fault-tolerance. Our theoretical research focuses on exploring quantum error correction, quantum error mitigation, and their combination to achieve robust error suppression with minimal overhead across a quantum network.
