Suppression of decoherence tied to electron–phonon coupling in telecom-compatible quantum dots: low-threshold reappearance regime for quantum state inversion
| العنوان: | Suppression of decoherence tied to electron–phonon coupling in telecom-compatible quantum dots: low-threshold reappearance regime for quantum state inversion |
|---|---|
| المؤلفون: | Kimberley C. Hall, Ajan Ramachandran, Dennis G. Deppe, S. O'Neal, G. R. Wilbur |
| المصدر: | Optics Letters. 45:6498 |
| بيانات النشر: | Optica Publishing Group, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Physics, Quantum network, Quantum decoherence, Condensed Matter - Mesoscale and Nanoscale Physics, Phonon, business.industry, Dephasing, FOS: Physical sciences, 02 engineering and technology, Quantum channel, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, 021001 nanoscience & nanotechnology, 01 natural sciences, Atomic and Molecular Physics, and Optics, 010309 optics, Condensed Matter::Materials Science, Quantum state, Quantum dot, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), 0103 physical sciences, 0210 nano-technology, Telecommunications, business, Wave function |
| الوصف: | We demonstrate suppression of dephasing tied to deformation potential coupling of confined electrons to longitudinal acoustic (LA) phonons in optical control experiments on large semiconductor quantum dots (QDs) with emission compatible with the low-dispersion telecommunications band at 1.3 µm. By exploiting the sensitivity of the electron–phonon spectral density to the size and shape of the QD, we demonstrate a fourfold reduction in the threshold pulse area required to enter the decoupled regime for exciton inversion using adiabatic rapid passage (ARP). Our calculations of the quantum state dynamics indicate that the symmetry of the QD wave function provides an additional means to engineer the electron–phonon interaction. Our findings will support the development of solid-state quantum emitters in future distributed quantum networks using semiconductor QDs. |
| تدمد: | 1539-4794 0146-9592 |
| DOI: | 10.1364/ol.403590 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2dadef6b5fb6fdda43b9d7ba24e75bba https://doi.org/10.1364/ol.403590 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....2dadef6b5fb6fdda43b9d7ba24e75bba |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15394794 01469592 |
|---|---|
| DOI: | 10.1364/ol.403590 |