A silicon-based device that performs two functions vital for error correction in quantum computers has been created by an international team of researchers. The device was produced using conventional semiconductor manufacturing processes, and the team now hopes to scale up the technology to create a silicon-based quantum-computer chip.

The device can write quantum information to an individual spin and can also readout data from a pair of spins. While both these actions have been accomplished on silicon-based technologies before, the team says this is the first time both have been performed simultaneously on the same device.

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