Extended Data Fig. 4: Relaxation times.

a, b, Single-spin relaxation times of Q₁ and Q₂. The measurements are performed by fitting the decay of the states |⇵⟩ and |⇅⟩ to state |⇊⟩. We extract T_1(Q1) = 2.0 ms and T_1(Q2) = 3.7 ms, consistent with ref. ⁶. Triplet probabilities have been normalized to remove readout errors.