Centre updates

Paper by Scott Lillie highlighted in Nature Nanotechnology

A recent paper by Scott Lillie from CQC2T's Melbourne node has been featured as a research highlight in the latest edition of Nature Nanotechnology. The paper on coherent control of a spin qubit in diamond, published in Physical Review Letters, was also selected as an Editor's Suggestion.

EMR schematic for driving of substitutional nitrogen (P1) centre electron spins (red) in bulk diamond. P1 centre nuclear spins (gray) lead to hyperfine splitting of the electron spin transition. Credit: Lillie et al

Read the full paper at Physical Review Letters.

Atomic-scale triumph: CQC2T researchers achieve high fidelity two-qubit readout with record spin times

High-fidelity sequential readout of two electron spins. Credit: Watson et al

Scaling up quantum computers remains one of the toughest challenges facing quantum computing research teams around the world. But new results published in Science Advances show that single-atom qubits in silicon can be engineered with atomic precision to have a five-fold increase in spin relaxation times.

These two-qubit devices are the only semiconductor-based qubits where both qubits have demonstrated the extremely high fidelities required for fault tolerant operation.

The two-qubit readout results were published in Science Advances.