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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A statistical framework models quasiparticle recombination and trapping in transmon qubits after particle impacts, enabling energy reconstruction of impacts through phonon-linked correlated relaxations that match Monte Carlo simulations.
Experiment on transmon hardware finds no logical-fidelity difference between coherent and stochastic error injection on distance-3 and distance-5 repetition codes, contrary to free-fermion simulations; authors hypothesize qubit-frequency drifts stochastify the coherent errors.
citing papers explorer
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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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Measuring quasiparticle dynamics for particle impact reconstruction in a superconducting qubit chip
A statistical framework models quasiparticle recombination and trapping in transmon qubits after particle impacts, enabling energy reconstruction of impacts through phonon-linked correlated relaxations that match Monte Carlo simulations.
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Coherent versus stochastic error injection on a repetition-code logical qubit in superconducting hardware
Experiment on transmon hardware finds no logical-fidelity difference between coherent and stochastic error injection on distance-3 and distance-5 repetition codes, contrary to free-fermion simulations; authors hypothesize qubit-frequency drifts stochastify the coherent errors.