Abstract:Recent theoretical work has highlighted that quantizing a superconducting circuit in the presence of timedependent flux Φ(t) generally produces Hamiltonian terms proportional to dΦ/dt unless a special allocation of the flux across inductive terms is chosen. Here, we present an experiment probing the effects of a fast flux ramp applied to a heavy-fluxonium circuit. The experiment confirms that naïve omission of the dΦ/dt term leads to theoretical predictions inconsistent with experimental data. Experimental dat… Show more
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