Energy Filament Theory · EFT Full KB
A Non-Dispersive "Image–Image" Common-Component Sequence in Strongly Lensed FRBs
V33-33.33 · G 判决节 / 审计节 ·
33.33 tightens the lensed-FRB claim into a path-common-component court: only if independently dedispersed and macro-aligned images preserve the same-direction constant-offset sequence across subbands and full polarization, show fine-structure zero-lag co-occurrence under a frozen tolerance, stay nearly orthogonal to DM and scattering differences, reproduce across epochs, facilities, and at least two lensed FRB systems, and beat sealed environment rankings can the section pass; even then it remains only a strongly lensed FRB path ledger, not a universal propagation or lensing verdict.
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Keywords: FRB, constant offset, zero-lag, DM, scattering, 1PPS, VLBI, κ, γ, macrodelay alignment, bandpass kernel, polarization
Section knowledge units
thesis
33.33 treats strongly lensed FRBs as a path-control experiment, not as a stage for one spectacular residual. Because the same burst is routed through distinct propagation paths, any surviving image–image constant after image-specific dedispersion and macro alignment is potentially informative—but only if it does not collapse under timing, calibration, and medium checks. That is why the section enters compat adjudication as tighten. It may preserve one strongly lensed FRB path ledger, but it may not let image–image common-term language become a universal propagation or lensing verdict.
mechanism
The measurement ledger is sequence-based and text-first. For each image pair, epoch, subband, and polarization partition, the chapter extracts a graded constant offset after image-specific dedispersion and macrodelay alignment, then tests whether its direction and strength ranking stay stable across low, mid, and high-frequency subbands. Within the same aligned window it measures zero-lag cross-correlation of fine structures, compares polarization-angle constants, de-Faraday residuals, circular-polarization sign, and intrapulse structure across images, and records whether the candidate constant remains nearly orthogonal to image–image DM and scattering differences.
mechanism
Workflow is designed to keep timing and lens modeling from silently writing the answer. Repeating lensed FRBs are prioritized for wideband, full-polarization, baseband observing, with VLBI or long-baseline electric-field correlation added where feasible. A single external time–frequency reference anchors timestamps, 1PPS plus controlled white-noise injection calibrate delays, and receiver bandpass kernels plus a common PSF protocol are frozen. Macro delays are handled through both a baseline lens model and a model-free image–image alignment path, while the environment team uses only κ, γ, nearby structure, and ray-path strata to issue direction and strength prediction cards before adjudication.
evidence
The chapter is organized around dismantling false constants. Negative controls and nulls ask whether the sequence flips with λ², 1/ν, or band edges, whether plasma lensing or multipath scattering can explain the effect, whether clock or delay anomalies clone the offset, whether macromodel degeneracies or micro/millilensing leak into the result, and whether image-pair, epoch, or subband permutations preserve similar significance. If one epoch, one subband, one analysis path, or one bandpass kernel carries the whole story, the candidate sequence is downgraded or removed.
boundary
The pass line is intentionally hard. Across at least two independent pipelines, two facility classes, and two lensed FRB systems, the chapter requires a nondispersive image–image constant-offset sequence with significant zero-lag co-occurrence, robustness to bandpass kernels and alignment strategies, near-orthogonality to DM and scattering differences, and environment prediction hits above random on held-out units. It fails if the sequence follows dispersive laws, remains inseparable from medium or link effects, vanishes on holdouts, or cannot be separated from clock, calibration, or modeling anomalies.
interface
The success line leaves no room for silent escalation. Even on a pass, what survives is only a cross-subband, full-polarization, crossepoch image–image sequence that has beaten timing, medium, and model nulls and has matched sealed environment rankings. That is enough to tighten the path-common-component lane and to hand off a disciplined image–image protocol to the next section, but not enough to settle every propagation claim elsewhere in the volume.