Control of the persistent currents in two interacting quantum rings through the Coulomb interaction and interring tunneling
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
19/04/2012
19/04/2012
2008
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| Resumo |
The persistent current in two vertically coupled quantum rings containing few electrons is studied. We find that the Coulomb interaction between the rings in the absence of tunneling affects the persistent current in each ring and the ground-state configurations. Quantum tunneling between the rings alters significantly the ground state and the persistent current in the system. FAPESP CNPq (Brazil) Flemish Science Foundation Belgium Science Policy (IAP), Belgian State Policy [FWOV1] |
| Identificador |
PHYSICAL REVIEW B, v.78, n.19, 2008 1098-0121 http://producao.usp.br/handle/BDPI/16482 10.1103/PhysRevB.78.195315 |
| Idioma(s) |
eng |
| Publicador |
AMER PHYSICAL SOC |
| Relação |
Physical Review B |
| Direitos |
restrictedAccess Copyright AMER PHYSICAL SOC |
| Palavras-Chave | #ground states #persistent currents #quantum dots #tunnelling #DENSITY-FUNCTIONAL THEORY #STRONG MAGNETIC-FIELDS #SPIN #DOTS #Physics, Condensed Matter |
| Tipo |
article original article publishedVersion |
