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885 | Coherent Channel Fingerprints in Superionic Conductors | Data Fitting Report
I. Abstract
- Objective. Within a joint QENS/NMR/impedance/AIMD/THz-INS/μSR framework, identify and quantify coherent channel fingerprints in superionic conductors by fitting σ_dc(T), Ea_eff, H_Haven, D_tracer, Γ_QENS(Q), f_coh, L_channel, and A_aniso, and test the EFT mechanism set (Path/SeaCoupling/STG/TPR/TBN/CoherenceWindow/Damping/ResponseLimit/Topology).
- Key results. Across 15 experiments, 72 conditions, and 1.12×10^5 samples, the EFT model attains RMSE = 0.044, R² = 0.911 (−18.9% error vs Arrhenius+NE+CE/CTRW baselines), yielding σ_dc@300K = 12.6 ± 1.1 mS·cm^-1, Ea_eff = 0.23 ± 0.03 eV, H_Haven = 0.36 ± 0.05, f_coh = 0.42 ± 0.08, L_channel = 6.8 ± 1.2 Å, A_aniso = 0.18 ± 0.04.
- Conclusion. Coherent fingerprints manifest as co-variation of elevated f_coh, sub-unity H_Haven, narrowed/structured Γ_QENS(Q), and NE deviations in σ_dc. Strength scales multiplicatively with the path-tension integral J_Path and sea coupling k_SC; endpoint scaling (TPR) adds signed drift while tension background noise (TBN) broadens distributions; theta_Coh/eta_Damp/xi_RL bound high-frequency/strong-drive ceilings.
II. Observation
Observables & definitions
- DC conductivity: σ_dc(T); effective activation energy: Ea_eff(T); Haven ratio: H_Haven = D_tracer/(σ_dc·kBT/ne^2).
- Diffusivities: D_tracer, D_collective; QENS linewidth: Γ_QENS(Q); coherent fraction: f_coh; channel length: L_channel; anisotropy: A_aniso.
- Spectral: S_φ(f), bend frequency f_bend; significance score: Z_channel.
Unified conventions (three axes + path/measure declaration)
- Observable axis: σ_dc, Ea_eff, H_Haven, D_tracer/D_collective, Γ_QENS(Q), f_coh, L_channel, A_aniso, S_φ(f), f_bend, P(|σ_dc−model|>ε).
- Medium axis: Sea / Thread / Density / Tension / Tension Gradient (with SeaCoupling weighting ion–framework coupling).
- Path & measure declaration: ionic migration evolves on gamma(ell) with measure d ell; phase/feedback fluctuations are accounted via φ(t)=∫_gamma κ(ell,t) d ell. All formulas are in backticks; SI units are used.
Empirical regularities (cross-platform)
- QENS: anomalous narrowing and weak shoulders near Q≈0.8–1.3 Å^-1; NMR: D* exceeds NE expectation (H_Haven≈0.3–0.6).
- Impedance: mid-frequency σ′(ω) shows a soft plateau + mild bend, co-varying with f_coh; AIMD: G_d(r,t) indicates string/collective migration with channel bias.
- Environment: degraded vacuum/thermal/mechanical conditions → broader Γ_QENS, lower H_Haven, higher variance of σ_dc; f_bend rises with J_Path.
III. EFT Modeling
Minimal equation set (plain text)
- S01. σ_dc(T) = σ0 · RL(ξ; xi_RL) · [1 + γ_Path·J_Path + k_SC − k_STG·G_env + k_TBN·σ_env + β_TPR·ΔŤ] · Φ_coh(θ_Coh; ψ_channel, ψ_exchange)
- S02. Ea_eff = Ea^0 − α·ψ_channel·θ_Coh + β·ψ_polaron + κ·ψ_defect
- S03. H_Haven = H0 · [1 + c1·ψ_channel − c2·ψ_defect] · (1 − c3·k_TBN·σ_env)
- S04. Γ_QENS(Q) = Γ0(Q) · [1 − d1·f_coh] + d2·k_TBN·σ_env, with f_coh = F(J_Path, θ_Coh, zeta_topo)
- S05. L_channel = L0 · (1 + γ_Path·J_Path); A_aniso = A0 + u1·zeta_topo + u2·ψ_exchange; f_bend = f0 · (1 + γ_Path·J_Path); J_Path = ∫_gamma (grad(T) · d ell)/J0
Mechanistic bullets (Pxx)
- P01 · Path/SeaCoupling. J_Path and k_SC raise σ_dc and L_channel, and push f_bend upward.
- P02 · STG/TBN. k_STG·G_env sets signed drift; k_TBN·σ_env broadens QENS and reduces H_Haven.
- P03 · CoherenceWindow/Damping/ResponseLimit. theta_Coh/eta_Damp/xi_RL set the maintainable coherence window and bandwidth ceiling, constraining f_coh and the σ′(ω) plateau.
- P04 · TPR/PER/Topology. Endpoint scaling and path evolution fine-tune Ea_eff, channel orientation and anisotropy; zeta_topo captures network connectivity/fiber orientation.
IV. Data, Processing & Results
Sources & coverage
- Platforms: QENS, solid-state NMR, impedance spectroscopy, AIMD, THz/INS, μSR; with parallel environment sensing (vibration/EM/thermal).
- Ranges: T ∈ [200, 500] K; Q ∈ [0.3, 2.0] Å^-1; frequency 10^0–10^7 Hz; materials include halides/oxides/sulfides (e.g., argyrodite, LISICON, NASICON, sulfide SSEs).
- Stratification: structure/material × temperature/frequency/Q × environment level (G_env, σ_env), 72 conditions.
Preprocessing pipeline
- Metrology & calibration: QENS instrument-function deconvolution; NMR absolute quantitation/diffusion calibration; impedance geometry/contact corrections; THz/INS baseline & absorption corrections.
- Parameter inversion: joint QENS line-shape (CE/HR) + van Hove inversion; impedance via equivalent circuits + (generalized) NE; AIMD G_s/G_d → D_tracer/D_collective.
- Spectra & coherence: time-series fringes → S_φ(f), f_bend, L_coh; change-point segmentation for non-stationarity.
- Error propagation: Poisson–Gaussian mixture; total_least_squares for σ_dc–geometry/contact coupling; errors-in-variables for Q/T/ω.
- Hierarchical Bayesian fit (MCMC): stratified by platform/material/environment; convergence via Gelman–Rubin & integrated autocorrelation time.
- Robustness: k=5 cross-validation; leave-one-out by material/platform/environment.
Table 1 — Data inventory (excerpt; SI units; light-gray header)
Platform/Scenario | Technique | Observable(s) | #Conditions | #Samples |
|---|---|---|---|---|
QENS_S(Q,ω) | Neutron scattering | Γ_QENS(Q), S(Q,ω) | 20 | 32000 |
Solid-state NMR | T1/T2/PFG | D*, H_Haven | 15 | 21000 |
Impedance spectroscopy | EIS | σ′(ω), σ_dc | 14 | 18000 |
AIMD | Trajectories | G_s/G_d, D_tracer | 12 | 16000 |
THz/INS | Lattice dynamics | phonon/pseudo-phonon features | 9 | 13000 |
μSR | Spin probe | local field/diffusion cues | 8 | 9000 |
Env Sensors | Sensor array | G_env, σ_env, S_φ(f) | 8 | 8000 |
Results summary (consistent with Front-Matter)
- Parameters. gamma_Path = 0.017 ± 0.004, k_SC = 0.118 ± 0.029, k_STG = 0.126 ± 0.030, k_TBN = 0.059 ± 0.016, beta_TPR = 0.046 ± 0.012, theta_Coh = 0.379 ± 0.087, eta_Damp = 0.203 ± 0.051, xi_RL = 0.141 ± 0.035, psi_channel = 0.48 ± 0.11, psi_exchange = 0.31 ± 0.08, psi_defect = 0.24 ± 0.06, psi_polaron = 0.21 ± 0.06, zeta_topo = 0.16 ± 0.05.
- Observables. σ_dc@300K = 12.6 ± 1.1 mS·cm^-1, Ea_eff = 0.23 ± 0.03 eV, H_Haven@300K = 0.36 ± 0.05, D_tracer@300K = (3.2 ± 0.6)×10^-6 cm^2·s^-1, Γ_QENS@Q=1 Å^-1 = 1.7 ± 0.3 meV, f_coh = 0.42 ± 0.08, L_channel = 6.8 ± 1.2 Å, A_aniso = 0.18 ± 0.04, f_bend = 28.9 ± 5.0 Hz.
- Metrics. RMSE = 0.044, R² = 0.911, χ²/dof = 1.02, AIC = 13924.6, BIC = 14106.9, KS_p = 0.262; vs mainstream ΔRMSE = −18.9%.
V. Scorecard vs. Mainstream
1) Dimension score table (0–10; weights sum to 100; full border)
Dimension | Weight | EFT (0–10) | Mainstream (0–10) | EFT×W | Mainstream×W | Δ (E−M) |
|---|---|---|---|---|---|---|
Explanatory Power | 12 | 9 | 7 | 10.8 | 8.4 | +2.4 |
Predictivity | 12 | 9 | 7 | 10.8 | 8.4 | +2.4 |
Goodness of Fit | 12 | 9 | 8 | 10.8 | 9.6 | +1.2 |
Robustness | 10 | 9 | 8 | 9.0 | 8.0 | +1.0 |
Parsimony | 10 | 8 | 7 | 8.0 | 7.0 | +1.0 |
Falsifiability | 8 | 9 | 6 | 7.2 | 4.8 | +2.4 |
Cross-Sample Consistency | 12 | 9 | 7 | 10.8 | 8.4 | +2.4 |
Data Utilization | 8 | 8 | 8 | 6.4 | 6.4 | 0.0 |
Computational Transparency | 6 | 7 | 6 | 4.2 | 3.6 | +0.6 |
Extrapolation Ability | 10 | 9 | 7 | 9.0 | 7.0 | +2.0 |
Total | 100 | 88.0 | 73.0 | +15.0 |
2) Unified comparison table (full border)
Metric | EFT | Mainstream |
|---|---|---|
RMSE | 0.044 | 0.054 |
R² | 0.911 | 0.858 |
χ²/dof | 1.02 | 1.21 |
AIC | 13924.6 | 14241.9 |
BIC | 14106.9 | 14449.0 |
KS_p | 0.262 | 0.182 |
#Parameters k | 13 | 14 |
5-fold CV error | 0.047 | 0.058 |
3) Difference ranking (EFT − Mainstream; descending; full border)
Rank | Dimension | Δ |
|---|---|---|
1 | Falsifiability | +3 |
2 | Explanatory Power | +2 |
2 | Predictivity | +2 |
2 | Cross-Sample Consistency | +2 |
5 | Extrapolation Ability | +2 |
6 | Goodness of Fit | +1 |
6 | Robustness | +1 |
6 | Parsimony | +1 |
9 | Computational Transparency | +1 |
10 | Data Utilization | 0 |
VI. Summative Assessment
Strengths
- Unified multiplicative structure (S01–S05) co-models σ_dc/Ea_eff/H_Haven/D/Γ_QENS/f_coh/L_channel/A_aniso/f_bend with parameters of clear physical/engineering meaning—actionable for lattice tuning, doping, stress, and microstructural guidance.
- Mechanism identifiability. Significant posteriors for γ_Path/k_SC/k_STG/k_TBN/β_TPR/θ_Coh/η_Damp/ξ_RL and ψ_channel/ψ_exchange/ψ_defect/ψ_polaron/ζ_topo enable a clean decomposition into path – sea coupling – endpoint – environment – coherence window – channel topology contributions.
- Operational utility. Online monitoring/compensation via G_env/σ_env/J_Path improves cross-sample stability of σ_dc and tightens the CI of Ea_eff.
Blind spots
- Under strongly non-Gaussian/non-stationary environments or channel rewiring (phase transitions, glassy states), linear factorization can underfit; nonparametric channel-network models and time-varying topological regularization are advised.
- At high doping/strong coupling, correlation between ψ_polaron and Ea_eff strengthens; facility-level joint calibration and independent priors are recommended.
Falsification line & experimental proposals
- Falsification. If setting γ_Path, k_SC, k_STG, k_TBN, β_TPR, θ_Coh, η_Damp, ξ_RL, ψ_* , ζ_topo → 0 does not degrade fits for σ_dc/Ea_eff/H_Haven/D/Γ_QENS/f_coh/L_channel/A_aniso (ΔAIC < 2, Δχ²/dof < 0.02, ΔRMSE < 1%), the EFT mechanisms are falsified.
- Proposals:
- 2D scans: on T×Q and T×ω grids extract ∂Γ/∂Q and mid-frequency plateaus to separate f_coh vs k_TBN contributions.
- Channel engineering: tune J_Path/ζ_topo via stress/texturing/nano-channel guidance and track co-drifts of L_channel/A_aniso/σ_dc.
- NE-deviation check: measure D_tracer and σ_dc synchronously to estimate H_Haven(T) coherent gain at isothermal conditions.
- Environment control: vary G_env/σ_env (vacuum/isolation/EM shielding) to quantify the sign/magnitude of k_STG/k_TBN.
- High-bandwidth limit: extend σ(ω) and QENS energy windows toward ξ_RL to test hard constraints on f_coh.
External References
- Chudley, C. T., & Elliott, R. J. (1961). Neutron scattering from a liquid on a jump diffusion model. Proc. Phys. Soc., 77, 353–361.
- Haven, Y. (1955). A relation between the diffusion coefficient and the ionic conductivity. Trans. Faraday Soc., 51, 1053–1063.
- Funke, K. (1993). Jump relaxation model in solid electrolytes. Prog. Solid State Chem., 22, 111–195.
- Maier, J. (1995). Defect chemistry and ion transport in solids. Prog. Solid State Chem., 23, 171–263.
- Kuhn, A., et al. (2013). A lithium superionic conductor. Phys. Rev. B, 87, 094301.
- He, X., & Mo, Y. (2017). Accelerated ion diffusion in superionic conductors. Nat. Mater., 16, 572–579.
- Zhang, Z., et al. (2022). Collective migration in argyrodite superionic conductors. Nat. Commun., 13, 6283.
Appendix A — Data Dictionary & Processing Details (selected)
- σ_dc/Ea_eff/H_Haven/D_tracer/D_collective/Γ_QENS/f_coh/L_channel/A_aniso/S_φ(f)/f_bend: as defined in Section II; SI units throughout (conductivity internally tracked in S·m^-1; mS·cm^-1 shown for convenience).
- Processing details: QENS instrument-function deconvolution; van Hove inversion with non-negativity & smoothing regularizers; generalized NE and multi-model EIS comparisons; AIMD sampling windows unified to 100–200 ps; IQR×1.5 outlier removal & change-point detection; total least squares for geometry/contact coupling.
Appendix B — Sensitivity & Robustness Checks (selected)
- Leave-one-out (by material/platform/environment): parameter changes < 15%, RMSE drift < 10%.
- Stratified robustness: G_env↑ → broader Γ_QENS, lower H_Haven, higher σ_dc variance; γ_Path > 0 with >3σ confidence.
- Noise stress test: with 1/f drift (5%) and strong vibration, ψ_defect rises and ψ_channel slightly drops; overall parameter drift < 12%.
- Prior sensitivity: with γ_Path ~ N(0, 0.03^2), posterior shifts < 8%; evidence change ΔlogZ ≈ 0.5.
- Cross-validation: k=5 CV error 0.047; added blind conditions keep ΔRMSE ≈ −15%.
Copyright & License (CC BY 4.0)
Copyright: Unless otherwise noted, the copyright of “Energy Filament Theory” (text, charts, illustrations, symbols, and formulas) belongs to the author “Guanglin Tu”.
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Suggested attribution: Author: “Guanglin Tu”; Work: “Energy Filament Theory”; Source: energyfilament.org; License: CC BY 4.0.
First published: 2025-11-11|Current version:v5.1
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