Figure 4.

Realization of recently proposed TQC architectures via FIB-milling. (a) Recently proposed TQC architectures such as one-sided hexon, tri-junction geometry and hexagon for braiding MZMs. (b) False-coloured FESEM images of two-sets of six parallel nanowire arrays and hexagon fabricated by milling of the exfoliated Bi₂Se₃ flakes, which serve as the starting material for milling of TQC structures. The hexagon geometry was proposed to braid MZMs by modulating the phase (ϕ) of the superconductor. (c) Schematic for hosting twenty-four Majorana bound states (twelve qubits) using FIB-fabricated TI (Bi₂Se₃) nanowire array shown in Fig. 4b. S denotes the source voltage. *Fig. 4a has been adapted from refs^5,4,10, respectively.