Influence of excitonic effects on dynamic localization in semiconductor superlattices in combined dc and ac electric fields
Bibliographic record
Abstract
We investigate the influence of excitonic effects on dynamic localization in an optically excited semiconductor superlattice in combined dc and ac electric fields. We use an excitonic basis to calculate both the quasienergy spectrum and the intraband dynamics of the system. We find that for moderate to high dc electric fields, where the Wannier-Stark ladder is only weakly disturbed by excitonic effects, the signature of dynamic localization is found in the quasienergy spectrum, the time-integrated terahertz (THz) signal, and in the decay rate of the carrier-generated THz intensity signal. However, in contrast to what is predicted by the models employing the semiconductor Bloch equations, we find that for low dc electric fields, the dynamic localization can be almost completely destroyed via excitonic effects.
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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".