Proposes spinmon qubits that entangle transmon states with Andreev quasiparticle spins for coherent control and noise robustness in superconducting systems.
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Experimental mapping of measurement-induced state transitions in a fluxonium qubit validates numerical models predicting eleven high-error flux regions, including effects from superinductor array modes.
Symmetrically coupled dispersive readout achieves 384 ns single-shot erasure detection on dual-rail qubits with 6.0(2)×10^{-4} residual error per check and enables parallel erasure checks during single-qubit gates with median 7.2×10^{-5} error per gate.
Experimental verification that transmon ionization under strong readout drives is a controllable Landau-Zener transition, with quantitative measurements of critical photon numbers and population transfer matching a semiclassical model.
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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Coherent control of spinmons
Proposes spinmon qubits that entangle transmon states with Andreev quasiparticle spins for coherent control and noise robustness in superconducting systems.
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Experimental Characterization and Modeling of Measurement-Induced State-Transitions in a Fluxonium Superconducting Qubit
Experimental mapping of measurement-induced state transitions in a fluxonium qubit validates numerical models predicting eleven high-error flux regions, including effects from superinductor array modes.
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Fast, High-Fidelity Erasure Detection of Dual-Rail Qubits with Symmetrically Coupled Readout
Symmetrically coupled dispersive readout achieves 384 ns single-shot erasure detection on dual-rail qubits with 6.0(2)×10^{-4} residual error per check and enables parallel erasure checks during single-qubit gates with median 7.2×10^{-5} error per gate.
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Probing excited-state dynamics of transmon ionization
Experimental verification that transmon ionization under strong readout drives is a controllable Landau-Zener transition, with quantitative measurements of critical photon numbers and population transfer matching a semiclassical model.
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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.