Szczegóły publikacji
Opis bibliograficzny
Three electrons in laterally coupled quantum dots : tunnel vs electrostatic coupling, ground-state symmetry, and interdot correlations / B. SZAFRAN, F. M. Peeters // Physical Review. B, Condensed Matter and Materials Physics ; ISSN 1098-0121. — Tytuł poprz.: Physical Review B : Condensed Matter. — 2005 — vol. 71 no. 24, s. 245314-1–245314-10. — Bibliogr. s. 245314-9–245314-10. — Publikacja dostępna online od: 2005-06-21. — B. Szafran - pierwsza afiliacja: Universiteit Antwerpen, Belgium
Autorzy (2)
- AGHSzafran Bartłomiej
- Peeters François Maria
Dane bibliometryczne
| ID BaDAP | 26143 |
|---|---|
| Data dodania do BaDAP | 2006-02-20 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevB.71.245314 |
| Rok publikacji | 2005 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Physical Review, B |
Abstract
The phase diagram for the ground-state symmetry of three electrons confined in a pair of laterally coupled dots is determined as function of the interdot distance and the magnetic field. With a few exceptions the ground-state spin and parity symmetry sequence of a circular harmonic quantum dot is conserved. Reentrant behavior of some energy levels as ground states is found as a function of the magnetic field. The disappearance of interdot tunnelling due to a strong magnetic field leads to ground-state degeneracy of the even and odd parity energy levels. It is shown that at a high magnetic field the system can be closely approximated by a two-electron system confined in one dot and a spectator electron localized in the other. Broken-parity eigenstates with a classical charge distribution are constructed and used to discuss the interdot electron-electron correlations.
