Figure 5
From: Soft-controlled quantum gate with enhanced robustness and undegraded dynamics in Rydberg atoms
(a) Without considering atomic decay, evolution of the average fidelity for implementing \({\hat{U}}_{\text{SWAP}}\) in both cases of constant pulse (\(\Omega _{\mathrm{0m}}/2\pi =1\text{ MHz}\)) and the soft quantum control (\({ \bar{\Omega}}_{\mathrm{0m}}/2\pi =2\text{ MHz}\)). (b) When considering atomic decay, final initial-state-specified fidelity versus lifetime of the Rydberg state in both cases