Figure 7From: Controlling the dynamic range of a Josephson parametric amplifierValidity of the quartic approximation. Ratio N crit / N max according to Eq. (40) (black), in the lumped element limit (dashed blue) and in the limit of small participation ratio L J ≪ld (dotted red) for the parameters { ω ˜ 0 /2π,Q}={7GHz,1,000}.Back to article page