Professor Andrew Dzurak’s team has had their work on CMOS qubits recognised with a recent paper acceptance in Nature Communications.

The paper reports an experimental demonstration of a new type of two-qubit logic gate based on our SiMOS qubit technology which allows more complex multi-electron spin systems to act as qubits.

The technological implications of this work are quite significant, since previous demonstrations have largely relied on qubits based on single electron wavefunctions, which can be easily distorted in a real CMOS device.  By moving to qubits containing more electrons the devices become more robust, and therefore more easily constructed using CMOS manufacturing.

The experiments were performed by our recently graduated PhD student, Ross Leon.  Ross was supported in his experiments by Dr Henry Yang, and the detailed theoretical analysis behind this work was led by Dr Andre Saraiva.

All of the qubit devices used for this study were fabricated entirely at our ANFF-NSW facility at UNSW.