Fig. 7: Experimental results of 1-tone and 2-tone nonlinearity measurement.
From: Fast generation of Schrödinger cat states using a Kerr-tunable superconducting resonator
a Relationship between the frequency shift and the photon number in 1-tone measurement with external flux Φext ~ 0.409Φ0. b Rabi oscillation between the Fock states (\(\left|0\right\rangle \leftrightarrow \left|1\right\rangle\) and \(\left|1\right\rangle \leftrightarrow \left|2\right\rangle\)). c Frequency scan of the SNAIL-terminated resonator under a 2-tone measurement with a conditional π pulse for \(\left|1\right\rangle\) (Φext ~ 0.24Φ0).
