High-fidelity gate operations are essential to the realization of a fault-tolerant quantum
computer. In addition, the physical resources required to implement gates must scale …

Single flux quantum (SFQ) digital logic has been proposed for the scalable control of next-
generation superconducting-qubit arrays. In the initial implementation, SFQ-based gate …

The hardware overhead associated with microwave control is a major obstacle to the scale-
up of superconducting quantum computing. An alternative approach involves irradiation of …

As superconducting quantum processors increase in size and complexity, the scalability of
standard techniques for qubit control and readout becomes a limiting factor. Replacing room …

Superconducting qubits are a promising platform for building a larger-scale quantum
processor capable of solving otherwise intractable problems. In order for the processor to …

Scaling of quantum computers to fault-tolerant levels relies critically on the integration of
energy-efficient, stable, and reproducible qubit control and readout electronics. In …

Large-scale superconducting quantum computers require the high-fidelity control and
readout of large numbers of qubits at millikelvin temperatures, resulting in a massive input …

Single-flux quantum pulses are a natural candidate for on-chip control of superconducting
qubits. We show that they can drive high-fidelity single-qubit rotations—even in leaky …

The rapid development in designs and fabrication techniques of superconducting qubits has
made coherence times of qubits longer. In the future, however, the radiative decay of a qubit …

An approach for scalable quantum computing infrastructure based on the use of low-power
digital superconducting single flux quantum (SFQ) circuits is described. Rather than …