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Record W4409805078 · doi:10.11159/icnnfc25.123

Photoelectronic Transport In Semiconductor Quantum Dots

2025· article· en· W4409805078 on OpenAlexvenueno aff
L.C. Ordóñez

Bibliographic record

VenueProceedings of the World Congress on Recent Advances in Nanotechnology · 2025
Typearticle
Languageen
FieldPhysics and Astronomy
TopicSemiconductor Quantum Structures and Devices
Canadian institutionsnot available
Fundersnot available
KeywordsQuantum dotSemiconductorOptoelectronicsMaterials scienceQuantum dot laserNanotechnologyPhysicsSemiconductor laser theory

Abstract

fetched live from OpenAlex

Current technology relies on the transistor, whose role is crucial for the fabrication of devices such as processors and memory units.Moore's Law states that the number of transistors would double every two years [1], increasing current density and resulting in higher temperatures, which impact energy efficiency [2].As transistors shrink to sizes on the nanometer scale, quantum effects begin to influence their operation, affecting transport properties and leading to performance alterations.Therefore, it becomes essential to study, both theoretically and experimentally, systems that harness the quantum states of matter for technological applications.This project focuses on studying electron transport at a quantum dot (QD), considering the interaction with a polarization photon 1 (left circular polarization) within a quantum electrodynamics cavity (QED).The QD is connected to two metallic contacts, and its behavior is analyzed using two Hamiltonians: the Jaynes-Cummings one [3] , which describes the interaction between the QD and the photon, and the Tigh Binding [4] , which describes the coupling of QD electrons with contacts.A toy model describes the electrons in contact (an effective level without Coulomb repulsion between electrons) and we focus on the subspace of total angular momentum 3/2.Using symmetries, the Hamiltonian can be reduced to a 6X6 matrix, which is diagonalized for different values of the QD energy (varied by an external voltage) thereby we get the spectrum of energies of the system [4] .This spectrum is compared with the system solution without metal contacts, and without light interaction, to analyze the relevance of these interactions in the system.Load fluctuation zones on the QD are of vital importance for transportation from one contact to another to be feasible.From the comparison of energy spectra, three charge fluctuation points are identified at 0, 0.5, and 2.0 eV, corresponding to the electron energy values within the system.In these regions of interest, the transition probability of the system is analyzed, revealing that the system's conductance is significantly affected by the incidence of a photon, leading to an increase in the transition probability frequency.This suggests that state transitions can occur more rapidly compared to a system where photon incidence is not considered.Although the transition frequency increases due to this coupling, the transition probability tends not to reach its maximum value.This is because the coupling with light alters the state energies, creating gaps that modify the transport conditions and the overall conductance of the system.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.632
Threshold uncertainty score0.793

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.002
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.006
GPT teacher head0.263
Teacher spread0.257 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designTheoretical or conceptual
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2025
Admission routes1
Has abstractyes

Explore more

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