Gate infidelity is used to measure how noisy a quantum gate is. We assume that the gate infidelity will continue to drop exponentially but that this development will stall at an infidelity of 5 · 10⁻⁷ (optimistic case) or 5 · 10⁻⁶ (less optimistic case). For the optimistic case we expect that the gate infidelity will continue to follow DeVincenzo’s law which predicts a reduction of the infidelity by a factor of 2 per year. The data points are taken from the following table:

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