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 …

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 …

Conventional semiconductor-based digital electronics, with complementary metal oxide
semiconductor (CMOS) technology as the primary example, has experienced meteoric …

As the superconducting qubit platform matures towards ever-larger scales in the race
towards a practical quantum computer, limitations due to qubit inhomogeneity through lack …

We report low-power single-flux-quantum (SFQ) circuits fabricated with a lowered critical
current density process and low-voltage design. We selected 250 A/cm to obtain 2–10 μA …

We present a control and measurement setup for superconducting qubits based on the
Xilinx 16-channel radio-frequency system-on-chip (RFSoC) device. The proposed setup …

We report on the design, fabrication, and measurement of a very high frequency band
Josephson arbitrary waveform synthesizer (VHF-JAWS) at frequencies from 1 kHz to 50.05 …

We present a set of robust and high-fidelity pulses that realize paradigmatic operations such
as the transfer of the ground state population into the excited state and arbitrary X/Y rotations …

We designed, simulated, and experimentally demonstrated components for a microwave-
frequency digital-to-analog converter based on single flux quantum (SFQ) circuits and an …

We demonstrate a sub-GHz resolution, fully programmable Fourier-domain pulse shaper
capable of generating arbitrary optical pulse patterns for superconducting circuit platforms …