Hardware-Efficient Qubit Control with Single-Flux-Quantum Pulse Sequences

  title={Hardware-Efficient Qubit Control with Single-Flux-Quantum Pulse Sequences},
  author={Kangbo Li and R. McDermott and Maxim G. Vavilov},
  journal={Physical Review Applied},
Single-flux-quantum (SFQ) digital logic is an attractive candidate for classical control and monitoring of large-scale quantum processors based on superconducting qubits. The authors describe a control approach based on repeated irradiation of the qubits with short registers of classical bits, which can be stored locally in compact SFQ registers and streamed to the quantum array at a high rate. Numerical simulations show achievable gate fidelity in excess of 99.99%; moreover, the approach… 

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