Miniaturization of Floquet topological insulators for airborne acoustics by thermal control
Bibliographic record
Abstract
The development of topological insulators in condensed matter systems that break time-reversal symmetry using magnetic bias has inspired a quest for similar effects in classical acoustic waves. The acoustic topological insulator is a revolutionary design to control acoustics in isolation and broadband unidirectional transmission, which is topologically robust and immune to structural disorders or defects. Currently, these fascinating properties have been investigated through fan-induced moving media, acoustic capacitance adjustment, and acoustic metamaterials. However, most of them are still associated with disadvantages including extra noise, bulky volume, and limited dynamic controlling performance. In this study, we propose an approach which could possibly overcome these limitations by introducing a modulation scheme of the temperature difference in a lattice of resonators, which demonstrates that the Floquet topological insulators with thermal control can realize topologically robust and nonreciprocal acoustic propagation. This controlling strategy provides an alternative platform to conduct acoustic topological applications, especially for noiseless and miniaturized airborne acoustics. The use of thermal modulation could potentially provide a platform for miniaturizing topologically insulating devices for airborne acoustics.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".