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Figure 1 | EPJ Quantum Technology

Figure 1

From: The circuit quantum electrodynamical Josephson interferometer

Figure 1

Sketch of parameter regions where the discussed approaches provide accurate descriptions. With increasing driving strength Ω, the validity range of the numerical approach shrinks to larger nonlinearities whereas the validity ranges for the Bogoliubov and P -function mean-field approaches grow. For definitions of U, J, Ω and γ see equation (1). The validity boundaries of the various approaches are discussed further in Figures 8, 9 and 12.

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