Solid State Qubits

Defects in diamond can be used as qubits | Credit: Jon Newland
Defects in diamond can be used as qubits | Credit: Jon Newland
This work covers solid state alternatives to the ion trap nodes at the core of the NQIT approach, which may offer different functionality in a quantum network and possibly alternative routes to a scalable processor. Specifically, our research is looking at colour centres in diamond and superconducting microwave cavities as alternatives to ion traps for the matter processing system within the quantum computing device.

In the first year we addressed some key aspects of the performance of defects in diamond and superconducting circuits as solid state quantum information nodes. With defects in diamond our focus is on the optical interface with spin qubits: being able to control qubits using lasers and being able to extract light efficiently for the purposes of building networks.

With superconducting qubits we are exploring a new design of qubit/cavity system that offers a high degree of networking scalability.