Fig. 2: Experimental methods to calibrate the tunable nonlinearity of the resonator. | Nature Communications

Fig. 2: Experimental methods to calibrate the tunable nonlinearity of the resonator.

From: Fast generation of Schrödinger cat states using a Kerr-tunable superconducting resonator

Fig. 2

a Flux bias dependent nonlinearity. The Kerr coefficient K is measured with single-tone and two-tone measurements. b Pulse sequences for the single-tone and two-tone nonlinearity measurements. c–e Results of the single-tone measurement near the Kerr-free point. α is the displacement. ωp is the frequency of the pump pulse to the SNAIL-terminated resonator.

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