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Suppressing chaos with mixed superconducting qubit devices
Ben Blain, Giampiero Marchegiani, Luigi Amico +1
In quantum information processing, a tension between two different tasks occurs: while qubits' states can be preserved by isolating them, quantum gates can be realized only through…
Rapid on-demand generation of thermal states in superconducting quantum circuits
Timm Fabian Mörstedt, Wallace Santos Teixeira, Arto Viitanen +13
We experimentally demonstrate the fast generation of thermal states of a transmon using a single-junction quantum-circuit refrigerator (QCR) as an in-situ-tunable environment. Thro…
Modeling phonon-mediated quasiparticle poisoning in superconducting qubit arrays
Eric Yelton, Clayton P. Larson, Vito Iaia +8
Correlated errors caused by ionizing radiation impacting superconducting qubit chips are problematic for quantum error correction. Such impacts generate quasiparticle (QP) excitati…