Quantum Computing | Centre for Quantum Computation and …

UNSW researchers at CQC2T have shown for the first time that they can build atomic precision qubits in a 3D device another major step towards a universal quantum computer.

The researchers, led by 2018 Australian of the Year and Director of CQC2T Professor Michelle Simmons, have demonstrated that they can extend their atomic qubit fabrication technique to multiple layers of a silicon crystal achieving a critical component of the 3D chip architecture that they introduced to the world in 2015. This new research is published today in Nature Nanotechnology.

The group is the first to demonstrate the feasibility of an architecture that uses atomic-scale qubits aligned to control lines which are essentially very narrow wires inside a 3D design. Whats more, team members were able to align the different layers in their 3D device with nanometer precision and showed they could read out qubit states single shot, i.e. within one single measurement, with very high fidelity.

This 3D device architecture is a significant advancement for atomic qubits in silicon, says Professor Simmons.

Read full articleRead Nature Nanotechnology publicationWatch Video: https://youtu.be/8JB7ncztJWs

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