A tunable-coupler unit cell for fluxonium qubits delivers parallel single-qubit gate fidelities near 99.99% and two-qubit CZ fidelities around 99%, validated by generating up to 10-qubit GHZ states in a 22-qubit processor.
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Resist-free shadow deposition via etched silicon trenches produces Al-AlOx-Al Josephson junctions with median qubit energy relaxation times of 184 microseconds and minimal substrate-metal interface contamination.
Optimized QED intervals plus steady-state extraction enable PEC+QED to deliver 2-11x lower error than PEC alone on Iceberg codes for QAOA.
Quantum teleportation of coherent states achieved over a thermal microwave network at up to 4 K with fidelities of 72.3% at 1 K and 59.9% at 4 K exceeding thresholds.
Quantum information lifetime scales exponentially with system size under continuous monitoring via mid-circuit measurements, proven analytically for Haar random unitaries and confirmed numerically and experimentally, unlike the linear scaling without monitoring.
A benchmarking framework for hybrid quantum error correction shows belief propagation reduces weighted correction volume by 48-57% compared to MWPM-family decoders while preserving input sparsity.
citing papers explorer
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Scalable Fluxonium Quantum Processors via Tunable-Coupler Architecture
A tunable-coupler unit cell for fluxonium qubits delivers parallel single-qubit gate fidelities near 99.99% and two-qubit CZ fidelities around 99%, validated by generating up to 10-qubit GHZ states in a 22-qubit processor.
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Resist-free shadow deposition using silicon trenches for Josephson junctions in superconducting qubits
Resist-free shadow deposition via etched silicon trenches produces Al-AlOx-Al Josephson junctions with median qubit energy relaxation times of 184 microseconds and minimal substrate-metal interface contamination.
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Co-Designing Error Mitigation and Error Detection for Logical Qubits
Optimized QED intervals plus steady-state extraction enable PEC+QED to deliver 2-11x lower error than PEC alone on Iceberg codes for QAOA.
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Quantum teleportation over thermal microwave network
Quantum teleportation of coherent states achieved over a thermal microwave network at up to 4 K with fidelities of 72.3% at 1 K and 59.9% at 4 K exceeding thresholds.
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Scaling Laws of Quantum Information Lifetime in Monitored Quantum Dynamics
Quantum information lifetime scales exponentially with system size under continuous monitoring via mid-circuit measurements, proven analytically for Haar random unitaries and confirmed numerically and experimentally, unlike the linear scaling without monitoring.
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A Unified Hardware-to-Decoder Architecture for Hybrid Continuous-Variable and Discrete-Variable Quantum Error Correction in LiDMaS+
A benchmarking framework for hybrid quantum error correction shows belief propagation reduces weighted correction volume by 48-57% compared to MWPM-family decoders while preserving input sparsity.
- Game-Theoretic Discovery of Quantum Error-Correcting Codes Through Nash Equilibria