A single multimode resonator enables unconditional qubit reset below 1% residual excitation in 220 ns and selective leakage reduction to 6.1% |f> population in 62 ns, with intrinsic Purcell protection preserving relaxation times despite direct coupling.
P.et al.2D transmons with lifetimes and coherence times exceeding 1 millisecond (2025)
9 Pith papers cite this work, alongside 1 external citations. Polarity classification is still indexing.
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Demonstrated gate-tunable supercurrents in Josephson junctions on Ge quantum wells with Ic >100 nA and IcRn=8.63 μV using in-situ Al contacts and deep mesa etch for low-loss integration.
Presents a setup accelerating radon progeny plateout by 7×10^4 to study α-decay impacts on superconducting qubits in situ.
Direct observation of interface piezoelectric loss causing up to 2x reduction in superconducting qubit lifetime on silicon, identified via resonance with SAW modes.
An on-chip SiO2/Si3N4 stencil lithography mask enables shadow evaporation of Al Josephson junctions, demonstrated with transmon qubits achieving average T1 of 75 μs.
Empirical scaling across materials reveals a universal bound on microwave dissipation tied to superfluid density and attributed to trapped nonequilibrium quasiparticles.
Cryogenic growth at 6 K increases structural disorder in aluminum films, enhancing superconductivity with higher Tc and critical field, shifting optical color to yellow, and raising kinetic inductance while microwave loss remains TLS-dominated.
PSM protocol combines progressive swapping from both path ends to the middle, claiming higher link probability than standard PS with imperfect memories, reasonable fidelity, and lower resource use than parallel protocols.
The paper proposes an 8-qubit transmon design at 12 GHz targeting 1.9 ms relaxation times and quality factors of 2.75e7 via tantalum and Nb/Al/AlOx fabrication on silicon.
citing papers explorer
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Multimode Purcell Filter for Superconducting-Qubit Reset and Readout with Intrinsic Purcell Protection
A single multimode resonator enables unconditional qubit reset below 1% residual excitation in 220 ns and selective leakage reduction to 6.1% |f> population in 62 ns, with intrinsic Purcell protection preserving relaxation times despite direct coupling.
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Voltage-tunable Josephson Junctions on Germanium Quantum Wells with in-situ Aluminum Contacts
Demonstrated gate-tunable supercurrents in Josephson junctions on Ge quantum wells with Ic >100 nA and IcRn=8.63 μV using in-situ Al contacts and deep mesa etch for low-loss integration.
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Accelerating Surface Radiation Content to Investigate the Impact of Radon Progeny on Superconducting Qubits
Presents a setup accelerating radon progeny plateout by 7×10^4 to study α-decay impacts on superconducting qubits in situ.
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Interface Piezoelectric Loss in Superconducting Qubits
Direct observation of interface piezoelectric loss causing up to 2x reduction in superconducting qubit lifetime on silicon, identified via resonance with SAW modes.
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On-chip stencil lithography for superconducting qubits
An on-chip SiO2/Si3N4 stencil lithography mask enables shadow evaporation of Al Josephson junctions, demonstrated with transmon qubits achieving average T1 of 75 μs.
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Universal bound on microwave dissipation in superconducting circuits
Empirical scaling across materials reveals a universal bound on microwave dissipation tied to superfluid density and attributed to trapped nonequilibrium quasiparticles.
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Cryogenic growth of aluminum: structural morphology, optical properties, superconductivity and microwave dielectric loss
Cryogenic growth at 6 K increases structural disorder in aluminum films, enhancing superconductivity with higher Tc and critical field, shifting optical color to yellow, and raising kinetic inductance while microwave loss remains TLS-dominated.
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An efficient Progressive Swapping to the Middle distribution protocol adapted to imperfect quantum memories in quantum networks
PSM protocol combines progressive swapping from both path ends to the middle, claiming higher link probability than standard PS with imperfect memories, reasonable fidelity, and lower resource use than parallel protocols.
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High-Coherence and High-frequency Quantum Computing: The Design of a High-Frequency, High-Coherence and Scalable Quantum Computing Architecture
The paper proposes an 8-qubit transmon design at 12 GHz targeting 1.9 ms relaxation times and quality factors of 2.75e7 via tantalum and Nb/Al/AlOx fabrication on silicon.