Centre updates

CQC2T researchers are connecting up the global quantum internet

A team of researchers led by A. Prof Matthew Sellars at The Australian National University have shown that an erbium-doped crystal is a practical building block for a global quantum internet.

Dr Rose Ahlefeldt and A. Prof Matthew Sellars operating a high resolution dye laser (used to study rare earth crystals) in the solid state spectroscopy laboratory at ANU. Image credit: Stuart Hay, ANU

The material is uniquely suited to enable a global quantum telecommunications network, achieving coherence times of more than a second and operating in the same 1550nm band as existing fibre optic networks.

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Access the full paper at Nature Physics.

Watch a video about the result.

CQC2T researchers propose new type of qubit

Prof Andrea Morello and his team at UNSW has developed a new architecture for quantum computing, based on novel ‘flip-flop qubits’, that promises to make the large-scale manufacture of quantum chips dramatically easier.

Artist's impression of the 'flip-flop' qubits exhibiting quantum entanglement. Tony Melov/UNSW

“What the team have invented is a new way to define a ‘spin qubit’ that uses both the electron and the nucleus of the atom. Crucially, this new qubit can be controlled using electric signals, instead of magnetic ones," said Prof Morello.

Read more at the UNSW Newsroom

Access the full paper at Nature Communications.