Two-electron lateral quantum-dot molecules in a magnetic field

Abstract

Laterally coupled quantum dot molecules are studied using exact diagonalization techniques. We examine the two-electron singlet-triplet energy difference as a function of magnetic field strength and investigate the magnetization and vortex formation of two- and four-minima lateral quantum dot molecules. Special attention is paid to the analysis of how the distorted symmetry affects the properties of quantum-dot molecules.

18 pages, 26 figures

References in corpus (4)

• Single-shot read-out of an individual electron spin in a quantum dot
• Single-shot readout of electron spin states in a quantum dot using spin-dependent tunnel rates
• Direct control of the tunnel splitting in a one-electron double quantum dot
• Ground-state of two-dimensional finite electron systems in the Quantum Hall regime