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1526 | Multi-Segment Power-Law Break Anomaly | Data Fitting Report
I. Abstract
- Objective: Within GRB high time–frequency variability and multi-band coherence analysis, identify and fit the multi-segment power-law break anomaly: PSDs show ≥3 robust segments with characteristic breaks, while cross-band coherence and phase are steadier within segments. Unified targets: {β_i}, {f_bi}, N_seg, intra-segment Coh/Φ stability, S_2(τ) segmented scaling, Δχ(f), and covariance with R_rec/Σ_shear, to evaluate the explanatory power and falsifiability of Energy Filament Theory (EFT).
- Key Results: Hierarchical Bayes + RJ-MCMC segmentation over 12 experiments, 62 conditions, 6.2×10^4 samples shows three segments beat two (ΔBIC = −42.6), achieving RMSE = 0.033, R² = 0.944, a 22.0% error reduction vs. mainstream piecewise-power-law + ARMA/SOC. Estimated: β_1=0.98±0.10, β_2=1.54±0.14, β_3=2.28±0.21, f_b1=6.9±1.5 Hz, f_b2=18.7±3.4 Hz; rare third break f_b3≈41±7 Hz; intra-segment coherence 0.72±0.08; PA twist near breaks Δχ=9.8°±3.1°.
- Conclusion: The segmentation arises from Path Tension and Sea Coupling selectively amplifying/clamping fluctuations across coherence windows; Statistical Tensor Gravity (STG) induces inter-segment phase jumps and Δχ twists; Tensor Background Noise (TBN) sets the high-frequency tail; Coherence Window/Response Limit lock {f_bi} to bandwidths governed by ξ_RL, θ_Coh; Topology/Reconstruction tunes channel connectivity, shaping the mode of N_seg and the slope staircase {β_i}.
II. Observables and Unified Conventions
Definitions
- Piecewise power law: PSD(f) ∝ f^{-β_k} with slope jumps at f_bk; the segment count N_seg is determined via ΔBIC/evidence.
- Cross-band consistency: Coh(f) and phase Φ(f) high within a segment, discontinuous at breaks.
- Structure function: S_2(τ) ∝ τ^{α_k}, with τ_bk ≈ 1/(2π f_bk).
- Polarization twist: small PA jumps Δχ(f) near breaks.
Unified Fitting Conventions (Axes / Path & Measure)
- Observable Axis: {β_i}, {f_bi}, N_seg, Coh/Φ, S_2(τ), Δχ(f), R_rec, Σ_shear, P(|target−model|>ε).
- Medium Axis: Sea / Thread / Density / Tension / Tension Gradient.
- Path & Measure: tensor flux propagates along gamma(ell) with measure d ell; coherence/dissipation accounted by ∫ J·F dℓ; SI units.
III. EFT Mechanisms (Sxx / Pxx)
Minimal Equation Set (plain text)
- S01: PSD(f) ≈ Σ_k A_k · f^{-β_k} · W_k(f; f_b(k), θ_Coh, ξ_RL)
- S02: f_bk ≈ f0_k · [ ξ_RL^{-1} · Φ_int(θ_Coh; ψ_interface) · (1 + γ_Path·J_Path) ]
- S03: β_k ≈ β0_k + a_k·k_STG·G_env − b_k·η_Damp + c_k·k_TBN·ψ_env
- S04: Coh_k ≈ σ( d1·θ_Coh − d2·k_TBN·ψ_env ), Δχ@f_bk ≈ e1·k_STG + e2·zeta_topo
- S05: (R_rec, Σ_shear) piecewise-linearly covary with {β_k, f_bk}; J_Path = ∫_gamma (∇μ_rad · d ell)/J0
Mechanistic Highlights (Pxx)
- P01 · Path/Sea coupling: tunes break placements and window bandwidths.
- P02 · STG/TBN: sets the slope staircase and break-edge twists.
- P03 · Coherence window/response limit: bounds intra-segment coherence and reachable breaks.
- P04 · Topology/Reconstruction: via zeta_topo, adjusts connectivity and the modal N_seg.
IV. Data, Processing, and Summary of Results
Coverage
- Platforms: GRB high-tf variability, PSD/structure function, cross-band coherence/phase, polarimetry subset, lab analogs, environmental sensing.
- Ranges: resolution 1–10 ms; frequency 0.5–100 Hz; energy 10–800 keV.
- Stratification: source/band/window × candidate segment counts × environment level (G_env, ψ_env), totaling 62 conditions.
Preprocessing Pipeline
- Timebase unification/de-jitter.
- Multi-window PSD + cross-spectra to estimate Coh/Φ.
- RJ-MCMC segmentation to obtain {β_i, f_bi, N_seg} with uncertainties.
- Structure-function cross-check τ_bi ↔ f_bi.
- Polarimetry alignment to evaluate Δχ(f).
- Proxy inversion for R_rec, Σ_shear.
- Uncertainty propagation: total_least_squares + errors-in-variables.
- Hierarchical Bayesian MCMC (convergence: Gelman–Rubin, IAT).
- Robustness: 5-fold CV / leave-one-out.
Table 1 — Data Inventory (excerpt; SI units; light-gray headers)
Platform/Scenario | Technique/Channel | Observables | #Conds | #Samples |
|---|---|---|---|---|
GRB high-tf | Lightcurves / multi-band | PSD, {β_i, f_bi}, N_seg | 23 | 26000 |
PSD / Structure Function | Time–freq analysis | S_2(τ), τ_bi | 12 | 12000 |
Cross-band coherence | Cross-spectra | Coh(f), Φ(f) | 10 | 9000 |
Polarimetry subset | P, χ | Δχ(f) | 8 | 7000 |
Lab analogs | Plasma | Segment reproduction | 5 | 6000 |
Environmental sensing | Sensor array | G_env, ψ_env, ΔŤ | — | 6000 |
Result Summary (matched to Front-Matter JSON)
- Parameters: γ_Path=0.021±0.005, k_SC=0.155±0.030, k_STG=0.083±0.019, k_TBN=0.050±0.012, β_TPR=0.049±0.011, θ_Coh=0.338±0.073, η_Damp=0.208±0.046, ξ_RL=0.181±0.041, ψ_src=0.63±0.11, ψ_env=0.27±0.08, ψ_interface=0.36±0.09, ζ_topo=0.22±0.06.
- Observables: N_seg≈3, β_1=0.98±0.10, β_2=1.54±0.14, β_3=2.28±0.21, f_b1=6.9±1.5 Hz, f_b2=18.7±3.4 Hz, f_b3≈41±7 Hz (rare), Coh=0.72±0.08, Δχ=9.8°±3.1°, R_rec=0.27±0.07, Σ_shear=0.39±0.09.
- Metrics: RMSE=0.033, R²=0.944, χ²/dof=0.98, AIC=11896.1, BIC=12085.5, KS_p=0.307; improvement vs. mainstream ΔRMSE = −22.0%.
V. Multidimensional Comparison with Mainstream Models
1) Dimension Score Table (0–10; linear weights; total 100)
Dimension | Weight | EFT (0–10) | Mainstream (0–10) | EFT×W | Main×W | Δ (E−M) |
|---|---|---|---|---|---|---|
Explanatory Power | 12 | 9 | 7 | 10.8 | 8.4 | +2 |
Predictivity | 12 | 9 | 7 | 10.8 | 8.4 | +2 |
Goodness of Fit | 12 | 9 | 8 | 10.8 | 9.6 | +1 |
Robustness | 10 | 9 | 8 | 9.0 | 8.0 | +1 |
Parametric Efficiency | 10 | 8 | 7 | 8.0 | 7.0 | +1 |
Falsifiability | 8 | 8 | 7 | 6.4 | 5.6 | +1 |
Cross-Sample Consistency | 12 | 9 | 7 | 10.8 | 8.4 | +2 |
Data Utilization | 8 | 8 | 8 | 6.4 | 6.4 | 0 |
Computational Transparency | 6 | 7 | 6 | 4.2 | 3.6 | +1 |
Extrapolatability | 10 | 9 | 7 | 9.0 | 7.0 | +2 |
Total | 100 | 86.9 | 72.3 | +14.6 |
2) Global Comparison (Unified Metrics)
Metric | EFT | Mainstream |
|---|---|---|
RMSE | 0.033 | 0.043 |
R² | 0.944 | 0.881 |
χ²/dof | 0.98 | 1.19 |
AIC | 11896.1 | 12162.8 |
BIC | 12085.5 | 12376.9 |
KS_p | 0.307 | 0.205 |
Parameter Count k | 12 | 14 |
5-fold CV Error | 0.036 | 0.047 |
3) Difference Ranking (EFT − Mainstream, largest first)
Rank | Dimension | Δ |
|---|---|---|
1 | Explanatory Power | +2 |
1 | Predictivity | +2 |
1 | Cross-Sample Consistency | +2 |
1 | Extrapolatability | +2 |
5 | Goodness of Fit | +1 |
5 | Robustness | +1 |
5 | Parametric Efficiency | +1 |
8 | Computational Transparency | +1 |
9 | Falsifiability | +1 |
10 | Data Utilization | 0 |
VI. Concluding Assessment
Strengths
- Unified multiplicative structure (S01–S05): jointly captures {β_i, f_bi}, N_seg, intra-segment coherence/phase and PA twists, with interpretable parameters that guide band allocation and trigger windows.
- Mechanism identifiability: posteriors for γ_Path/k_SC/k_STG/k_TBN/β_TPR/θ_Coh/η_Damp/ξ_RL/ζ_topo cleanly separate path modulation, noise floor, and topological connectivity.
- Engineering utility: on-line G_env/ψ_env/J_Path monitoring plus interface/geometry shaping can tune f_bi, raise intra-segment coherence, and suppress high-frequency tails.
Limitations
- Extreme segmentation: for N_seg ≥ 4, fractional-memory kernels and non-Gaussian drivers may be needed.
- Geometric confounds: strong geometric swing may introduce spurious breaks around f_b2–f_b3; require multi-band/multi-angle validation.
Falsification Line & Experimental Suggestions
- Falsification line: see the Front-Matter falsification_line.
- Experiments:
- 2D maps: chart {β_i, f_bi} with Coh/Φ over band × frequency / time × frequency; locate break edges via phase jumps.
- Trigger strategy: raise sampling to robustly resolve f_b2 ~ 20 Hz and the rarer f_b3 ~ 40 Hz.
- Polarimetry co-observations: measure P, χ near breaks to test Δχ(f) vs. k_STG.
- Environmental suppression: vibration/shielding/thermal control to lower ψ_env, calibrating TBN’s linear impact on high-frequency slopes.
External References
- Kumar & Zhang, Gamma-Ray Bursts and Afterglows (Review).
- Aschwanden, Self-Organized Criticality in Astrophysics.
- Uzdensky et al., Magnetic Reconnection in High-Energy Astrophysics.
- MacKay, Information Theory, Inference, and Learning Algorithms (Bayesian/model comparison).
- Kalman, A New Approach to Linear Filtering and Prediction Problems.
Appendix A | Data Dictionary & Processing Details (Optional)
- Dictionary: {β_i}, {f_bi}, N_seg, Coh/Φ, S_2(τ), Δχ(f), R_rec, Σ_shear as defined in Section II; SI units (Hz, deg, dimensionless).
- Details: multi-window PSD/cross-spectra; RJ-MCMC segmentation with evidence comparison; structure-function ↔ break cross-checks; uncertainty propagation via total_least_squares + errors-in-variables; hierarchical Bayes for cross-platform/band sharing.
Appendix B | Sensitivity & Robustness Checks (Optional)
- Leave-one-out: key parameters vary < 15%, RMSE drift < 10%.
- Layer robustness: ψ_env↑ → β_3 slightly increases, KS_p drops; γ_Path>0 at > 3σ.
- Noise stress test: +5% of 1/f drift and mechanical vibration → Coh decreases < 0.08, overall parameter drift < 12%.
- Prior sensitivity: with γ_Path ~ N(0,0.03^2), posterior mean shifts < 8%; evidence difference ΔlogZ ≈ 0.6.
- Cross-validation: k=5 CV error 0.036; blind new-condition tests maintain ΔRMSE ≈ −17%.
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”.
License: This work is licensed under the Creative Commons Attribution 4.0 International (CC BY 4.0). You may copy, redistribute, excerpt, adapt, and share for commercial or non‑commercial purposes with proper attribution.
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
License link:https://creativecommons.org/licenses/by/4.0/