Shape effects on the ground-state energy of a three-electron quantum dot

Vatansever Z., Sakiroglu S., Sokmen I.

CHINESE PHYSICS B, vol.24, no.12, 2015 (SCI-Expanded) identifier identifier

  • 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, ELECTRONIC-STRUCTURE
  • 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.