Figure 2.

Nonlinear capacitance C _nl and power spectral density S _I(ω) of current noise. (A) Nonlinear capacitance plotted against $\overline{\omega }(=\omega /{\omega }_r)$. Nonlinear capacitance C _nl is normalized by γnq ². (B) Power spectral density of current noise is plotted against $\overline{\omega }$. $S_I(\overline{\omega })$ is normalized by $S_0\mathrm{(=4}\overline{P}\mathrm{(1}-\overline{P})n{q}^2{\omega }_r)$. Traces respectively correspond to the values of ${\overline{\omega }}_{\eta }$: 1 (black), 2 (blue), and 5 (red).