Fig. 2: Gate error model and simulated performance.
From: Erasure conversion for fault-tolerant quantum computing in alkaline earth Rydberg atom arrays
a Possible atomic states at the end of a two-qubit gate. The configurations grouped in the yellow box are detectable erasure errors; red, undetectable errors; and green, the computational space. b Gate error as a function of the gate duration tg. The average gate infidelity \(1-{{{{{{{\mathcal{F}}}}}}}}\) (black squares) is dominated by detectable erasures with probability pe (orange points). The infidelity conditioned on not detecting an erasure, \(1-{{{{{{{{\mathcal{F}}}}}}}}}_{\bar{e}}\) (green points) is about 50 times smaller. This reflects decays to Q with probability pp, and a no-jump evolution contribution (green dashed line). The probability pf of undetectable leakage (red points) is very small. The lines are analytic estimates of each quantity, while the symbols are numerical simulations. Both assume Vrr/Γ = 106, and Ω is varied along the horizontal axis.
