Fig. 4: Coherence time for different driving parameters.
From: Protecting qubit coherence by spectrally engineered driving of the spin environment
a NV T2 as a function of Δν for different bath Rabi frequencies Ωss. Stochastic drive outperforms monochromatic drive (Δν = 0). For very weak driving fields (Ωss/2π = 0.0 MHz), the stochastic phase modulation is ineffective and T2 is independent of Δν. b T2 as a function of drive Rabi frequency Ωss for monochromatic driving Δν = 0 and stochastic driving with Δν/2π = 17 MHz. Solid lines are fit using our model (see Supplementary Note 3 for details). Error bars correspond to ± one standard deviation of the T2 estimate.
