Coherent control of electric currents in superlattices and molecular wires: Effect of relaxation
Bibliographic record
Abstract
We consider a d-dimensional conductor (a superlattice) within the independent-electron one-band approach taking into account relaxation processes. The nonperturbative nonlinear dc electric current in response to a sum of coherent time-periodic electric fields with frequencies $\ensuremath{\omega}$ and $2\ensuremath{\omega}$ and a phase shift $\ensuremath{\varphi}$ is studied in (a) the quantum coherent ``dynamic'' regime and (b) the ``kinetic'' regime under the influence of scattering. For slow relaxation the first one takes place at short time and the second at long time. We demonstrate that coherent control of dc electric currents is possible in both cases, though the particular conditions and manifestations are drastically different. We obtain a detailed picture of coherent control through intraband dynamics, and discuss the role of scattering and the time evolution of the response.
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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 | 0.000 |
| 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 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".