Wave-Medium Interactions in Dynamic Matter and Modulation Systems
Bibliographic record
Abstract
Space-time modulation systems have recently garnered significant attention due to their resemblance to moving-matter systems, unique properties, and promising applications. Unlike conventional moving-matter systems, modulation systems do not involve any net motion of matter and are therefore easier to implement and capable to attain relativistic and superluminal velocities. However, the fundamental wave-medium interaction aspects in such media, such as scattering and energy-momentum relations, have been essentially unexplored to date. In this article, we fill this gap, considering three dynamic systems: moving-matter blocs, moving-perturbation interfaces, and moving-perturbation truncated periodic structures, and provide corresponding general formulations along with comparisons. Our investigation reveals significant roles played by the “pushing” and “pulling” effects of the moving interface onto the wave in such systems. Moreover, it describes different energy and momentum transfers between moving media and homogenized moving-perturbation structures that result from conventional and reverse Fresnel-Fizeau drag effects.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.004 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".