One of the world’s largest manufacturers of computer chips – GlobalFoundries – got involved in the development technical process for large-scale production of quantum processors. GlobalFoundries will create a process for the mass production of carbon qubit processors that can operate at room temperature. It will collaborate with the developer of such quantum processors, the Australian company Archer Materials.
Back in 2016, the young Australian company Archer Materials in the prestigious journal Nature Communications told about a unique development – spin qubits enclosed in carbon nanospheres. In a series of experiments, Archer Materials has shown the ability to non-destructively measure the state of electron spins (polarization) in such qubits at room temperature and the ability to control these states using pulsed microwave radiation. Later, the company received patents for 12CQ technology (carbon qubits) in the US, China, Japan, South Korea, Europe and Australia.
Using the experience and tools of GlobalFoundries, the developers of Archer Materials hope to develop technical processes for the large-scale production of quantum processors using their technology. One of the features of 12CQ is the need to create many physical qubits to reproduce a single error-free logical qubit, for which the outputs of the entire array of physical qubits are combined to form one logical qubit. Obviously, this will require advanced technical processes to scale the technology to tens and hundreds of thousands of qubits on a single chip, which GlobalFoundries can help with.
Earlier this year, Intel and QuTech announced that they had achieved industrial-scale production of quantum processors based on silicon qubits on 300mm wafers. Each wafer yields up to 10,000 quantum processors with a defect rate of less than 5%. Unfortunately, Intel’s silicon qubits can only operate at ultra-low temperatures. In this regard, the possible proposal of GlobalFoundries and Archer Materials can hardly be overestimated.
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