Fig. 5: Fluctuations of the pure dephasing rate, the qubit frequency, and the quantum-efficiency reduction of the single-photon source.
From: Quantum efficiency, purity and stability of a tunable, narrowband microwave single-photon source
a, b Fluctuations on the pure dephasing rate Γϕ and the qubit frequency around ω01,1/(2π) = 5.51 GHz and ω01,2/(2π) = 5.39 GHz, corresponding to 0 and 120 MHz detunings, over 136 h. c Fluctuations of the reduction of the quantum efficiency, ηp, due to the fluctuations of Γϕ at 0 MHz and 120 MHz detunings, over 136 h. In all panels, the error bars are two standard deviations.
