Figure 8.

QPU layouts used to perform QPE experiments on the (32e,32o) active space example. Left: layout used for QPE with Trotterization. Right: Layout used for QPE with qubitization. Data block qubits are orange, magic-state factory qubits are green, and routing and storage qubits are blue. Qubitization uses many more data qubits such that the data block is much larger. However, the higher T-gate count in QPE with Trotterization necessitates larger magic-state factories (225-to-1) compared to those in qubitization (116-to-12). Axes are included to indicate the total number of logical qubits in both layouts, with each logical qubit having size 1-by-1. However, note that the code distance is higher in QPE with Trotterization (see Table 2) so that these are not to physical scale.