The accuracy of calculations with three qubits amounted to 99.39%. According to researchers, this is a world record for operations of this type.

The development is based on fluxoniums, a special type of superconducting qubits that are capable of preserving quantum information longer than many other analogues. The new processor allows performing a complex logical operation in one stage instead of a sequence of eight two-qubit operations. This reduces computation time and lowers the probability of errors.

Previously a similar approach existed only in the form of theoretical calculations, but now it has been possible to implement it experimentally. In the future the technology may simplify the design of quantum computers and facilitate the creation of more powerful computing systems.

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