Universal Scaling of Decoherence under Dynamical Decoupling: A Cross Platform Test of Spectral RG Theory

This Zenodo record provides the digitized data points and derived summary table used in our cross-platform reanalysis of dynamical-decoupling (DD) protocol performance via the dimensionless ratio eta(tau) = T_alt(tau) / T_CPMG(tau), where T denotes the experiment-specific decay-time metric (e.g., R⁻¹, T2, or an exponential lifetime). Datasets included: Solid-state NMR (Álvarez & Suter, 2011): digitized eta(tau) vs pulse delay tau. NV ensemble (Farfurnik et al., 2015): digitized T2 vs pulse number N for CPMG, XY8, and KDD-XY8, plus the clean reference table; an effective-axis mapping tau_eff = k/N (k = 51.75 ms) is used for tau-like visualization. Optical spin-wave memory (Ma et al., 2021): digitized (t, ln A(t)) points used to extract lifetimes T = -1/slope for CPMG (tau = 50, 100, 1000 ms) and KDDx (tau = 50, 100, 1000 ms). We use these data to test the spectral-RG scaling relation alpha(gamma) = gamma/(1+gamma) in the narrow-band sampling regime, and to quantify protocol-dependent performance through eta(tau) and windowed geometric-mean summaries (Supplementary Table S1 in the accompanying manuscript). Contact: Hiroyuki Shioiri (ORCID 0009-0000-2928-5685).