Sydney-based quantum computing company Diraq has announced achieving over 99% fidelity in two-qubit gates using its SiMOS (silicon metal-oxide-semiconductor) quantum dot platform. This milestone represents a significant step toward reliable silicon-based quantum devices.
The technical achievement, detailed in a study published in Nature Physics, involved strategies for improving high-fidelity operations. The research focused on gate recalibration, informed choice of physical materials, and pulse engineering to enhance the entangling gate fidelities' robustness, consistency, and reliability.
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