Fig. 4
From: New design of three-qubit system with three transmons and a single fixed-frequency resonator coupler

Trajectory of the Bloch vector for each qubit during \(\text {CNOT}_{01}\). The passage of time flows from blue to red as indicated by the colorbar. The Bloch vector of ‘Transmon 0’(a, d), ‘Transmon 1’(b, e), and ‘Transmon 2’(c, f) are illustrated in the case of the initial state \(|{000}\rangle\)(a, b, c) and \(|{100}\rangle\)(d, e, f).