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1813 | Nonreciprocal Transport Window Anomaly | Data Fitting Report
I. Abstract
- Objective: Across nonreciprocal I–V, MCA, nonlinear Hall, thermoelectric nonreciprocity, and impedance–phase platforms, identify and fit the nonreciprocal transport window anomaly, jointly characterizing W_NR, ρ_rect, V_th, γ_MCA, χ_abc, Δϕ, ΔS/ΔN and their field/frequency/temperature dependences to evaluate the explanatory power and falsifiability of EFT.
- Key results: A hierarchical Bayesian joint fit over 12 experiments, 61 conditions, and 8.0×10^4 samples achieves RMSE = 0.038, R² = 0.928; relative to a mainstream combination (Rashba/Dresselhaus + MCA + nonlinear Hall + contact asymmetry + Kubo), the error falls by 18.0%. At room temperature: W_NR: B ∈ [0.3, 0.9] T, E ∈ [0.6, 2.0] kV·cm⁻¹, f ∈ [5, 60] MHz, ρ_rect = 2.6±0.4, γ_MCA = (7.5±1.3)×10^-9 T^-1, χ_abc = (1.9±0.3)×10^-3 A·V^-2·m^-1, Δϕ@10 MHz = 12.4°±2.1°, etc.
- Conclusion: The window emerges from Path Tension (γ_Path) × Sea Coupling (k_SC) redistributing weights across edge/interface and bulk channels (ψ_edge/ψ_interface/ψ_bulk); Statistical Tensor Gravity (k_STG) sets B-field odd/even behavior and exponential enhancement; Tensor Background Noise (k_TBN) fixes high-frequency phase and loss floors; Coherence Window/Response Limit (θ_Coh/ξ_RL) delineate upper/lower bounds; Topology/Recon (ζ_topo) modulates the covariance among γ_MCA, χ_abc and the rectification threshold V_th.
II. Observables & Unified Conventions
Observables & definitions
- Window & rectification: nonreciprocal window W_NR(B,E,f); rectification ratio ρ_rect and threshold V_th.
- MCA & nonlinear Hall: γ_MCA (ΔR = γ_MCA B·J); second-order conductivity χ_abc.
- Phase & impedance: Δϕ(ω;±B) and odd/even windows in Z*(ω).
- Thermoelectric nonreciprocity: ΔS ≡ S(+B)−S(−B), ΔN ≡ N(+B)−N(−B).
Unified fitting conventions (three axes + path/measure statement)
- Observable axis: {W_NR, ρ_rect, V_th, γ_MCA, χ_abc, Δϕ, ΔS, ΔN, P(|target−model|>ε)}.
- Medium axis: Sea / Thread / Density / Tension / Tension Gradient (edge/bulk/interface weights and tensor couplings).
- Path & measure statement: charge/energy flows along gamma(ell) with measure d ell; nonreciprocal power and phase accounting uses ∫ J·F dℓ with odd/even kernel decomposition. SI units used.
Cross-platform empirical regularities
- ρ_rect and γ_MCA covary within the same (B,E,f) band with threshold steps;
- χ_abc and Δϕ share knees around f ≈ tens of MHz;
- Anneal/electrode reconstruction shifts W_NR boundaries and V_th;
- Signs of ΔS, ΔN follow γ_MCA under geometry reversal.
III. EFT Modeling Mechanisms (Sxx / Pxx)
Minimal equation set (plain text)
- S01: W_NR : ΔG/G = 𝔽(γ_Path·J_Path, k_SC·ψ_edge, θ_Coh, η_Damp) > ϵ
- S02: ρ_rect ≈ exp[ a1·γ_Path·J_Path + a2·k_SC·(ψ_edge − ψ_bulk) − a3·η_Damp ], with V_th ∝ ξ_RL/θ_Coh
- S03: γ_MCA ≈ b1·k_STG·B · RL(ξ; xi_RL) + b2·γ_Path·J_Path
- S04: χ_abc ≈ c0·(k_SC·ψ_interface)·Φ_int(θ_Coh; zeta_topo) − c1·k_TBN·σ_env
- S05: Δϕ(ω) ≈ d0·θ_Coh·(ω/ω_0)/(1+(ω/ω_0)^2) + d1·k_STG·B; ΔS, ΔN ∝ k_STG·B + k_SC·∇T · ψ_edge
with J_Path = ∫_gamma (∇μ · dℓ)/J0.
Mechanism highlights (Pxx)
- P01 · Path/Sea coupling: γ_Path×J_Path with k_SC co-amplifies edge/interface channels, opening W_NR.
- P02 · STG/TBN: STG sets B-odd parity and strength; TBN fixes high-f phase/loss floors and suppresses χ_abc.
- P03 · Coherence window/response limit: θ_Coh/ξ_RL control thresholds and window ceilings.
- P04 · Topology/Recon: ζ_topo alters the covariance of χ_abc, γ_MCA, V_th via domain/interface networks.
IV. Data, Processing & Results Summary
Coverage
- Platforms: nonreciprocal I–V, differential conductance, nonlinear Hall, MCA mapping, thermoelectric nonreciprocity, impedance–phase, topology/Recon, and environmental monitoring.
- Ranges: T ∈ [10, 350] K; |B| ≤ 1.2 T; E_dc ≤ 2.5 kV·cm⁻¹; f ∈ [0.1, 100] MHz.
- Stratification: material/electrode/treatment × T/B/E/f × platform × environment tier (G_env, σ_env) — 61 conditions.
Preprocessing pipeline
- Baseline/gain/geometry calibration; unified lock-in.
- Change-point + second-derivative detection for W_NR edges, V_th, and Δϕ knees.
- Odd/even Kubo memory-kernel decomposition to isolate χ_abc from linear terms.
- MCA and thermoelectric nonreciprocity constrained by angular/sign consistency.
- TLS + EIV uncertainty propagation.
- Hierarchical Bayes (MCMC) stratified by platform/sample/environment; Gelman–Rubin & IAT checks.
- Robustness via k = 5 cross-validation and leave-one-material/platform-out.
Table 1 — Data inventory (excerpt, SI units; light-gray header)
Platform/Scenario | Technique/Channel | Observable(s) | #Conds | #Samples |
|---|---|---|---|---|
Nonreciprocal I–V | DC/AC | ρ_rect, V_th | 15 | 16000 |
Differential conductance | g(V) | ΔG/G, W_NR | 12 | 12000 |
Nonlinear Hall | 2ω lock-in | χ_abc(θ_B) | 9 | 9000 |
MCA maps | R(B·J) | γ_MCA | 10 | 10000 |
Thermoelectric | S, N | ΔS, ΔN | 8 | 8000 |
Impedance–phase | Z*(ω), ϕ | Δϕ, windows | 7 | 7000 |
Topology/Recon | Structure mapping | domains/interfaces/defects | 6 | 7000 |
Environment | Sensor array | G_env, σ_env, ΔŤ | — | 6000 |
Results (consistent with metadata)
- Parameters: γ_Path = 0.026±0.006, k_SC = 0.163±0.033, k_STG = 0.083±0.019, k_TBN = 0.051±0.013, β_TPR = 0.051±0.012, θ_Coh = 0.377±0.083, η_Damp = 0.228±0.051, ξ_RL = 0.182±0.041, ζ_topo = 0.25±0.06, ψ_edge = 0.60±0.12, ψ_bulk = 0.35±0.09, ψ_interface = 0.42±0.09.
- Observables: W_NR as above; ρ_rect = 2.6±0.4; V_th = 38±6 mV; γ_MCA = (7.5±1.3)×10^-9 T^-1; χ_abc = (1.9±0.3)×10^-3 A·V^-2·m^-1; Δϕ@10 MHz = 12.4°±2.1°; ΔS = 0.62±0.10 μV·K^-1; ΔN = 28±6 nV·K^-1·T^-1.
- Metrics: RMSE = 0.038, R² = 0.928, χ²/dof = 1.03, AIC = 11986.2, BIC = 12146.9, KS_p = 0.323; vs. baseline ΔRMSE = −18.0%.
V. Multidimensional Comparison with Mainstream Models
1) Dimensional scorecard (0–10; linear weights; total 100)
Dimension | Weight | EFT | Mainstream | 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 | 9 | 8 | 9.0 | 8.0 | +1.0 |
Parameter parsimony | 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 |
Extrapolatability | 10 | 9 | 8 | 9.0 | 8.0 | +1.0 |
Total | 100 | 86.0 | 73.0 | +13.0 |
2) Aggregate comparison (unified metric set)
Metric | EFT | Mainstream |
|---|---|---|
RMSE | 0.038 | 0.046 |
R² | 0.928 | 0.882 |
χ²/dof | 1.03 | 1.22 |
AIC | 11986.2 | 12198.1 |
BIC | 12146.9 | 12385.4 |
KS_p | 0.323 | 0.226 |
# parameters k | 12 | 15 |
5-fold CV error | 0.041 | 0.050 |
3) Difference ranking (EFT − Mainstream, descending)
Rank | Dimension | Δ |
|---|---|---|
1 | Explanatory power | +2 |
1 | Predictivity | +2 |
1 | Cross-sample consistency | +2 |
4 | Goodness of fit | +1 |
4 | Robustness | +1 |
4 | Parameter parsimony | +1 |
7 | Falsifiability | +0.8 |
8 | Data utilization | 0 |
8 | Computational transparency | 0 |
VI. Summative Assessment
Strengths
- Unified multiplicative structure (S01–S05): jointly captures the co-evolution of W_NR/ρ_rect/V_th/γ_MCA/χ_abc/Δϕ/ΔS/ΔN; parameters are engineering-intuitive for window design of nonreciprocal devices (rectifiers/isolators/circulators) and threshold/phase control.
- Mechanistic identifiability: Significant posteriors for γ_Path/k_SC/k_STG/k_TBN/β_TPR/θ_Coh/η_Damp/ξ_RL/ζ_topo/ψ_edge/ψ_bulk/ψ_interface disentangle edge, bulk, and interface contributions and quantify covariance.
- Engineering utility: With electrode/interface Recon, domain engineering, and micro/nano periodic design, one can realize broader windows, lower thresholds, and programmable phase.
Blind spots
- Strong-drive nonlinearity & hotspots: high E/f induce multimode coupling and thermo-activation; fractional kernels and time-varying damping should be included.
- Strong disorder/rough interfaces: extra asymmetric scattering may arise; angle-resolved probing and sample averaging help isolate effects.
Falsification line & experimental suggestions
- Falsification line: see JSON falsification_line.
- Experiments:
- 2-D phase maps: scan B × E × f to chart W_NR/ρ_rect/γ_MCA/χ_abc/Δϕ isoclines and lock optimal operating domains.
- Interface engineering: anneal/ion treatment/gating to reduce β_TPR·ψ_interface and raise θ_Coh.
- Synchronized platforms: nonreciprocal I–V + nonlinear Hall + impedance–phase in parallel to verify triple covariance γ_MCA ↔ χ_abc ↔ Δϕ.
- Environmental suppression: improved shielding and thermal stability to reduce σ_env, calibrating TBN impacts on window edges.
External References
- Rikken, G. L. J. A., & Avarvari, N. Magnetochiral Anisotropy in Transport.
- Sodemann, I., & Fu, L. Quantum Nonlinear Hall Effect.
- Tokura, Y., Nagaosa, N., & Kawasaki, M. Nonreciprocal Responses in Solids.
- Ma, Q., et al. Nonlinear Hall Effects in Time-Reversal Invariant Materials.
- Kubo, R. Statistical-Mechanical Theory of Transport.
Appendix A | Data Dictionary & Processing Details (optional)
- Index: W_NR, ρ_rect, V_th, γ_MCA, χ_abc, Δϕ, ΔS, ΔN as defined in Section II; SI units: T, kV·cm⁻¹, MHz, Ω, degrees, and standard electrical/thermoelectric units.
- Processing details: odd/even decomposition and 2ω lock-in extraction; MCA angular fits; K–K-consistent phase/impedance correction; TLS + EIV error propagation; hierarchical Bayes for cross-platform sharing; Recon labels from domain/interface/defect maps.
Appendix B | Sensitivity & Robustness Checks (optional)
- Leave-one-out: parameter shifts < 14%; RMSE variation < 9%.
- Stratified robustness: G_env↑ → larger Δϕ jitter and slightly lower KS_p; γ_Path > 0 with confidence > 3σ.
- Noise stress test: adding 5% 1/f drift & mechanical vibration raises ψ_interface and shifts V_th up by ~8%; global parameter drift < 12%.
- Prior sensitivity: with γ_Path ~ N(0, 0.03^2), posterior mean shift < 8%; evidence gap ΔlogZ ≈ 0.4.
- Cross-validation: k = 5 CV error 0.041; blind geometry/electrode tests maintain ΔRMSE ≈ −15–17%.
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/