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JoeMerchant writes:

Quantum Brilliance was founded in 2019 on the back of research undertaken by its founders at the Australian National University, where they developed techniques to manufacture, scale and control qubits embedded in synthetic diamond.

The company has already built a number of "Quantum development kits" in rack units, each with around 5 qubits to work with, and it's placing them with customers already, for benchmarking, integration, co-design opportunities and to let companies start working out where they'll be advantageous once they hit the market in a ~50-qubit "Quantum Accelerator" product form by around 2025. "We think over a decade," says Luo, "we can even produce a quantum system-on-a-chip for mobile devices. Because this is truly material science technology that can achieve that." From their whitepaper, the technical description of their technique is:

Room-temperature diamond quantum computers consist of an array of processor nodes. Each processor node is comprised of a nitrogen-vacancy (NV) center (a defect in the diamond lattice consisting of a substitutional nitrogen atom adjacent to a vacancy) and a cluster of nuclear spins: the intrinsic nitrogen nuclear spin and up to ~4 nearby 13C nuclear spin impurities. The nuclear spins act as the qubits of the computer, whilst the NV centers act as quantum buses that mediate the initialization and readout of the qubits, and intra-and inter-node multi-qubit operations. Quantum computation is controlled via radiofrequency, microwave, optical and magnetic fields.

"In terms of commercial deployment," says Luo, "we have the Pawsey Supercomupting Center, which is currently the Southern Hemisphere's largest supercomputing center, co-owned by CSIRO and some other universities. We established basically Australia's first supercompuing quantum innovation hub, and we set up a Pawsey Pioneer program where industry and research groups can utilize our quantum operating system.

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