A dual-rail buffer-atom Rydberg CZ gate with PT-symmetric waveforms cancels first-order amplitude and phase errors upon projecting the buffer atom, giving heralded gate errors projected at 10^-4 to 10^-6.
Suppression of higher frequency components and smooth on-off process are also implicitly included [21]
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Analysis of heralded higher-fidelity two-qubit entangling gates with self-correction
A dual-rail buffer-atom Rydberg CZ gate with PT-symmetric waveforms cancels first-order amplitude and phase errors upon projecting the buffer atom, giving heralded gate errors projected at 10^-4 to 10^-6.