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.
We show the results forR 4, the readout res- onator coupled toQ B, and we focus on the case where QB is prepared in|0⟩at the beginning of the sequence
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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.