Shape effects on the ground-state energy of a three-electron quantum dot
CHINESE PHYSICS B, vol.24, no.12, 2015 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 24 Issue: 12
- Publication Date: 2015
- Doi Number: 10.1088/1674-1056/24/12/127303
- Journal Name: CHINESE PHYSICS B
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Keywords: quantum dot, configuration interaction method, Wigner molecule
- Dokuz Eylül University Affiliated: Yes
Abstract
In this work we will theoretically study the ground-state electronic structure of three-electron polygonal quantum dots by means of the configuration interaction method. Transition from a weakly correlated regime to a strongly correlated regime is investigated for quantum dots with hexagonal, square, and triangular geometries. Our numerical results reveal that the ground-state spin and the charge density distribution of the system are sensitive to the shape of the quantum dot.