D-Wave Quantum announces in gate-model quantum computing breakthrough

D-Wave Quantum (QBTS) announced a breakthrough in gate-model quantum computing with the demonstration of scalable on-chip cryogenic control of qubits. The company said this industry-first milestone advances the development of commercially viable gate-model quantum computers by significantly reducing the wiring required to control large numbers of qubits without degrading qubit fidelity. The company stated, “This achievement validates that the on-chip cryogenic control technology D-Wave developed for its commercial annealing quantum processing units can also be applied to its gate-model architectures. In D-Wave annealing systems, the control technology uses multiplexed digital-to-analog converters to control tens of thousands of qubits and couplers with just 200 bias wires. The same control technology can also reduce gate-model wiring complexity while maintaining qubit fidelity, enabling large-scale, practical gate-model QPUs.”