TY  - JOUR
AU  - Bakker, Michiel A.
AU  - Mehl, Sebastian
AU  - Hiltunen, Tuukka
AU  - Harju, Ari
AU  - DiVincenzo, David
TI  - Validity of the single-particle description and charge noise resilience for multielectron quantum dots
JO  - Physical review / B
VL  - 91
IS  - 15
SN  - 1098-0121
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2015-03038
SP  - 155425
PY  - 2015
AB  - We construct an optimal set of single-particle states for few-electron quantum dots (QDs) using the method of natural orbitals (NOs). The NOs include also the effects of the Coulomb repulsion between electrons. We find that they agree well with the noniteracting orbitals for GaAs QDs of realistic parameters, while the Coulomb interactions only rescale the radius of the NOs compared to the noninteracting case. We use NOs to show that four-electron QDs are less susceptible to charge noise than their two-electron counterparts.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000353283800002
DO  - DOI:10.1103/PhysRevB.91.155425
UR  - https://juser.fz-juelich.de/record/190079
ER  -