A model platform for rapid, robust, directed, and long-range vibrational energy transport: Insights from a mixed quantum-classical study of a 1D molecular chain
Bibliographic record
Abstract
The design of devices that efficiently and robustly transport vibrational energy is of importance to applications in molecular electronics and quantum information processing. In this work, we study a 1D model of a molecular chain with repeating carbonyl-containing subunits that exhibits extremely rapid vibrational energy transport between its distal subunits. This model contains two key features: (i) the bare frequencies of the two distal carbonyl groups are equally shifted with respect to those of the remaining groups, and (ii) the carbonyl groups are coupled to a bath of coupled low-frequency harmonic oscillators. Using mixed quantum-classical dynamics, we investigate the effects of bath temperature and chain length on the energy transfer along the chain, following an excitation of a carbonyl mode at one end of the chain. At very low temperatures, we find that no substantial energy transfer takes place; however, over a wide range of higher temperatures, the excitation energy rapidly hops between the two terminal carbonyl groups regardless of the chain length. These findings suggest that such a model could be used as a platform for building devices that are capable of rapid, robust, directed, and long-range vibrational energy transport.
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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".