A millikelvin superconducting DAC integrated with fluxonium qubits generates persistent flux tuning signals via SFQ pulses without measurable coherence degradation.
Zhao, A multiplexed control architecture for super- conducting qubits with row-column addressing (2024)
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A tunable coupler design enables sub-100 ns two-qubit gates with errors below 10^{-4} between fluxonium qubits over 1 cm distances for modular architectures.
Time-multiplexing qubit control reduces drive lines with only logarithmic serialization overhead for single-qubit gates and zero overhead for couplers up to connectivity limits.
citing papers explorer
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Millikelvin digital-to-analog converter for superconducting quantum processors
A millikelvin superconducting DAC integrated with fluxonium qubits generates persistent flux tuning signals via SFQ pulses without measurable coherence degradation.
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Long-range tunable coupler for modular fluxonium quantum processors
A tunable coupler design enables sub-100 ns two-qubit gates with errors below 10^{-4} between fluxonium qubits over 1 cm distances for modular architectures.
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Overhead in Quantum Circuits with Time-Multiplexed Qubit Control
Time-multiplexing qubit control reduces drive lines with only logarithmic serialization overhead for single-qubit gates and zero overhead for couplers up to connectivity limits.