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Figure 4 | EPJ Quantum Technology

Figure 4

From: Characterization of how dissipation and dephasing errors accumulate in quantum computers

Figure 4

Trace distance between the process matrix for the ideal Toffoli gate and the process matrices for Rydberg interaction implementations subject to dissipation and decoherence. The results are shown as a function of the Rabi frequency of the (blue) laser coupling. The dashed curve is obtained by simulating all three qubits as they evolve under the sequence of gates in the Toffoli circuit shown in Figure 2(a). The top solid curve uses concatenation of the one- and two-qubit process matrices to compute the Toffoli circuit process matrix. The bottom (solid) curve results from simulating the multi-qubit implementation shown in Figure 5. In all calculations 500 Monte Carlo trajectories were used with the parameters listed in Table 1.

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