Extended Data Fig. 3: Hahn-echo envelopes.
From: Emergence of highly coherent two-level systems in a noisy and dense quantum network
Data of Fig. 3e plotted against τ to highlight the approximately simple exponential (β = 0.9) decay of the nnn pair Hahn-echo signal (orange) as opposed to typical ions at x = 0.1% (purple) and x = 0.01% (green) with β = 1/2.
