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Figure 2 | EPJ Quantum Technology

Figure 2

From: Tunable coupling of transmission-line microwave resonators mediated by an rf SQUID

Figure 2

Uncalibrated through transmission magnitude (color coded) as a function of probe frequency and externally applied flux for (a) resonator A and (b) resonator B. The red arrows mark the flux values, for which transmission vs. frequency cuts are shown in Figure 4. (c) Fit (red line) of Equation (10) to the extracted center frequencies (crosses). The modes are taken from the through measurements, where they are more pronounced. This is especially necessary when the coupling is smaller than the detuning of the resonators. (d) Plot of the coupling rate \(g(\Phi)\) between both resonators obtained by the fit in (c).

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