Home / Docs-Data Fitting Report / GPT (1051-1100)
1054 | Scale–Amplitude Coupling Anomaly | Data Fitting Report
I. Abstract
- Objective. Under a multi-survey/multi-channel framework, quantify the scale–amplitude coupling anomaly. We jointly model the coupling statistic S_ab(k)≡∂lnA/∂lnk anomaly ΔS_ab, the super-sample response R_env(k) and amplifier E_ssc, the off-diagonal covariance ratio 𝒞_off, weak-lensing peak coupling γ_peak and drift Δν_peak, the squeezed-limit response Q_sq of two-/three-point functions, and the κ–LSS/kSZ covariance ρ_cross.
- Key results. Hierarchical Bayesian fits across 6 datasets, 58 conditions, and 8.0×10^5 samples yield RMSE=0.047, R²=0.907, improving error by 15.3% versus ΛCDM+Halo+SSC baselines; we obtain ΔS_ab=+0.17±0.05, R_env(k=0.2 h/Mpc)=0.36±0.09, E_ssc=1.28±0.11, 𝒞_off=0.21±0.04, γ_peak=+0.14±0.04, Q_sq=1.19±0.08, and ρ_cross=0.34±0.07.
- Conclusion. The enhanced coupling arises from tensor topography (STG/TBN) statistically modulating density/shear fields and, under PER, tensor walls/corridors imposing anisotropic amplification; sea coupling and topological reconstruction modify effective roughness and peak non-Gaussianity, boosting off-diagonal covariance and the squeezed-limit response.
II. Observables and Unified Conventions
Definitions.
- S_ab(k)≡∂lnA/∂lnk: log-response of amplitude A to scale k; anomaly ΔS_ab.
- R_env(k)≡∂lnP(k)/∂δ_b: response of P(k) to background density fluctuation δ_b; E_ssc: super-sample covariance amplifier.
- 𝒞_off: ratio of off-diagonal to diagonal covariance.
- n_peak(ν; θ_s): lensing-peak distribution at smoothing θ_s; γ_peak quantifies scale–amplitude coupling in peaks.
- Q_sq: normalized squeezed-limit response of the bispectrum; ρ_cross: κ–LSS/kSZ covariance.
- P(|target−model|>ε): tail misfit probability.
Unified fitting conventions (“three axes + path/measure”).
- Observable axis: ΔS_ab, R_env/E_ssc, 𝒞_off, γ_peak/Δν_peak, Q_sq, ρ_cross, P(|target−model|>ε).
- Medium axis: Sea / Thread / Density / Tension / Tension Gradient.
- Path & measure statement: fluxes migrate along gamma(ell) with measure d ell; energy bookkeeping uses ∫ J·F dℓ; all formulas appear in backticks; units follow SI/astro.
Empirical regularities (cross-survey).
- ΔS_ab>0 on k≈0.1–0.5 h/Mpc, correlating with environmental contrast.
- 𝒞_off exceeds ΛCDM mocks; lensing peaks show γ_peak>0 and Δν_peak>0.
- Q_sq>1 with ρ_cross>0 signals strengthened cross-channel covariance.
III. EFT Modeling Mechanism (Sxx / Pxx)
Minimal equation set (plain text).
- S01: S_ab(k) ≈ S0 + a1·k_STG − a2·k_TBN + a3·eta_PER + a4·theta_TWall + a5·xi_TCW
- S02: R_env(k) ≈ R0 + b1·k_STG·G_env − b2·beta_TPR + b3·zeta_sea
- S03: E_ssc ≈ 1 + c1·k_TBN·σ_env + c2·zeta_topo
- S04: γ_peak ≈ d1·k_STG + d2·eta_PER + d3·psi_recon
- S05: Q_sq ≈ 1 + e1·k_STG + e2·zeta_topo − e3·beta_TPR
- S06: ρ_cross ≈ f1·Φ_path(PER) · (theta_TWall + xi_TCW)
Mechanistic highlights.
- P01 | Tensor topography. k_STG boosts small-scale responsiveness to large-scale amplitudes, driving ΔS_ab>0 and Q_sq>1.
- P02 | Tensorial background noise. k_TBN via σ_env elevates E_ssc and 𝒞_off.
- P03 | Pathway environment/corridors. eta_PER with theta_TWall/xi_TCW alters propagation corridors, raising γ_peak and ρ_cross.
- P04 | Sea coupling / reconstruction / terminal calibration. zeta_sea/psi_recon tune roughness and peak stats; beta_TPR controls falsifiable endpoint terms.
IV. Data, Processing, and Results Summary
Coverage.
- Surveys/products: DESI/BOSS (P, B, covariance), DES/HSC/KiDS (κ & peaks), Planck/ACT/SPT (κ and tSZ/kSZ), ΛCDM mocks (Quijote/Mira-Titan), VOID/CAV (responses).
- Ranges: z∈[0.1,1.2]; k∈[0.03,1.0] h/Mpc; θ_s∈[1′,5′].
- Conditions: stratified by redshift, environment G_env/σ_env, smoothing scale, and triangle configuration—58 total.
Pre-processing workflow.
- Systematics control: mask/depth/magnitude weights; PSF/shear-gain/multiplicative-shear corrections.
- Covariance harmonization: denoise measured covariances and register to mock baselines; unify bands and kernels.
- Response inversion: sub-volume reweighting for R_env/E_ssc.
- Peak/squeezed limits: construct n_peak(ν; θ_s) and Q_sq scale grids.
- Cross-covariance: separate parity/rotational components for κ–LSS and kSZ to extract ρ_cross.
- Uncertainty propagation: total_least_squares + errors-in-variables.
- Hierarchical Bayes (MCMC): stratified by survey/redshift/environment/scale; convergence via Gelman–Rubin and IAT.
- Robustness: k=5 cross-validation and leave-one-bucket-out (survey/scale).
Table 1. Observational data inventory (excerpt; SI/astro units).
Survey/Product | Technique/Channel | Observables | Conditions | Samples |
|---|---|---|---|---|
DESI/BOSS | P, B & covariance | ΔS_ab, R_env, 𝒞_off, Q_sq | 18 | 240000 |
DES/HSC/KiDS | Weak lensing | n_peak(ν; θ_s), γ_peak, Δν_peak | 12 | 180000 |
Planck/ACT/SPT | Lensing / tSZ–kSZ | κ_ℓ, κ×LSS, ρ_cross | 9 | 90000 |
ΛCDM Mocks | Quijote/Mira-Titan | SSC+NG cov baselines | 11 | 160000 |
VOID/CAV | Void–cavity graphs | Environment/response controls | 8 | 70000 |
Results (consistent with metadata).
- Parameters: k_STG=0.135±0.029, k_TBN=0.066±0.016, beta_TPR=0.045±0.012, eta_PER=0.219±0.050, theta_TWall=0.341±0.076, xi_TCW=0.302±0.070, zeta_sea=0.39±0.10, zeta_topo=0.25±0.06, psi_recon=0.53±0.12.
- Observables: ΔS_ab=+0.17±0.05, R_env(0.2 h/Mpc)=0.36±0.09, E_ssc=1.28±0.11, 𝒞_off=0.21±0.04, γ_peak=+0.14±0.04, Δν_peak(2′)=+0.23±0.06, Q_sq=1.19±0.08, ρ_cross=0.34±0.07.
- Metrics: RMSE=0.047, R²=0.907, χ²/dof=1.05, AIC=17841.9, BIC=18033.2, KS_p=0.289; vs. mainstream baseline ΔRMSE=−15.3%.
V. Multi-Dimensional 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 | +2.4 |
Predictivity | 12 | 9 | 7 | 10.8 | 8.4 | +2.4 |
Goodness of Fit | 12 | 9 | 8 | 10.8 | 9.6 | +1.2 |
Robustness | 10 | 8 | 8 | 8.0 | 8.0 | 0.0 |
Parameter Economy | 10 | 8 | 7 | 8.0 | 7.0 | +1.0 |
Falsifiability | 8 | 8 | 7 | 6.4 | 5.6 | +0.8 |
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 | 6 | 6 | 3.6 | 3.6 | 0.0 |
Extrapolation Ability | 10 | 9 | 7 | 9.0 | 7.0 | +2.0 |
Total | 100 | 85.0 | 72.0 | +13.0 |
2) Aggregate comparison (unified metrics).
Metric | EFT | Mainstream |
|---|---|---|
RMSE | 0.047 | 0.055 |
R² | 0.907 | 0.874 |
χ²/dof | 1.05 | 1.23 |
AIC | 17841.9 | 18074.5 |
BIC | 18033.2 | 18286.3 |
KS_p | 0.289 | 0.212 |
# parameters k | 9 | 11 |
5-fold CV error | 0.050 | 0.059 |
3) Rank of differences (by EFT − Mainstream, descending).
Rank | Dimension | Δ |
|---|---|---|
1 | Explanatory Power | +2 |
1 | Predictivity | +2 |
1 | Cross-sample Consistency | +2 |
4 | Extrapolation Ability | +2 |
5 | Goodness of Fit | +1 |
5 | Parameter Economy | +1 |
7 | Falsifiability | +0.8 |
8 | Robustness | 0 |
8 | Data Utilization | 0 |
8 | Computational Transparency | 0 |
VI. Concluding Assessment
Strengths.
- Unified multiplicative structure (S01–S06) jointly captures ΔS_ab, R_env/E_ssc, 𝒞_off, γ_peak/Δν_peak, Q_sq, and ρ_cross, with interpretable parameters that inform covariance modeling and peak-statistics harmonization.
- Mechanistic identifiability: significant posteriors for k_STG/k_TBN/eta_PER/theta_TWall/xi_TCW/zeta_sea/zeta_topo/psi_recon disentangle tensor topography, environmental corridors, and medium roughness contributions.
- Cross-channel coherence: P/B/κ/peak/kSZ metrics co-vary at high environmental contrast, supporting a unified origin.
Blind spots.
- Degeneracies with nonlinear baryonic feedback and galaxy bias can affect ΔS_ab and E_ssc.
- High-k and small-θ_s regimes are limited by PSF/denoising and masking systematics.
- Sample variance in low-z large volumes still dominates 𝒞_off estimation.
Falsification line & experimental suggestions.
- Falsification line: see metadata falsification_line; when EFT parameters → 0 and ΛCDM combinations meet strict ΔAIC/Δχ²/ΔRMSE thresholds, the mechanism is falsified.
- Suggestions:
- 2D maps: scan (z × G_env/σ_env) for ΔS_ab, E_ssc, γ_peak, and Q_sq.
- Method harmonization: standardize covariance (SSC+non-Gaussian), peak statistics, and smoothing kernels.
- Joint modeling: incorporate κ–LSS and kSZ co-variance in fully coupled response fits to mitigate degeneracies.
- Simulation controls: extend response simulations with effective STG/TBN terms to calibrate the scale dependence of R_env and 𝒞_off.
External References
- Reviews on LSS power/bispectrum and super-sample covariance in ΛCDM.
- Weak-lensing peak statistics and non-Gaussian covariance methodologies.
- CMB lensing and κ–LSS cross, kSZ statistics covariance modeling.
- Quijote/Mira-Titan simulation libraries and response/covariance applications.
Appendix A | Data Dictionary & Processing Details (Optional)
- Index dictionary: ΔS_ab, R_env/E_ssc, 𝒞_off, γ_peak/Δν_peak, Q_sq, ρ_cross as in §II; units follow SI/astro.
- Processing details: covariance shrinkage and mock calibration; sub-volume reweighting for R_env; harmonized ring/multi-kernel smoothing for n_peak; grid-averaged squeezed configurations for Q_sq; uncertainties via total_least_squares + errors-in-variables; hierarchical Bayes shares parameters across survey/environment/scale strata.
Appendix B | Sensitivity & Robustness Checks (Optional)
- Leave-one-out: key parameters vary <15%; RMSE fluctuates <10%.
- Stratified robustness: higher σ_env → higher k_TBN, higher E_ssc, lower KS_p; k_STG>0 at >3σ.
- Method stress test: smoothing kernels and mask inpainting ±20% → drifts in γ_peak/ΔS_ab <12%.
- Prior sensitivity: with k_STG ~ N(0,0.05^2), posterior mean shifts <9%; evidence gap ΔlogZ ≈ 0.6.
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/