Figure 11

Eigenvalue \(E_{m}\)(m = 0, 1, 2, 3) of \(\hat{\mathcal{H}}_{\mathrm{sub}}^{j}\) in Eq. (52) as a function of offset charge \(\bar{n}_{g_{j}}\) for different ratio \(E_{J_{j}}/E_{C_{j}}\). (a) \(E_{J_{j}}/E_{C_{j}}=1\), and \(\gamma _{j}(\varphi _{\mathrm{ext}})/E_{C_{j}}=1\). (b) \(E_{J_{j}}/E_{C_{j}}=1\), and \(\gamma _{j}(\varphi _{\mathrm{ext}})/E_{C_{j}}=4\). (c) \(E_{J_{j}}/E_{C_{j}}=4\), and \(\gamma _{j}(\varphi _{\mathrm{ext}})/E_{C_{j}}=1\)