Correlated few-electron states in vertical double-quantum-dot systems

Details Correlated few-electron states in vertical double-quantum-dot systems Correlated few-electron states in vertical double-quantum-dot systems

1994-12-12

arxiv.org/abs/cond-mat/9412056v1

Physics

Condensed Matter

20 pages, Latex, figures upon request. To appear in Phys. Rev. B (January 1995)

Scientific paper

10.1103/PhysRevB.51.1769

The electronic properties of semiconductor, vertical, double quantum dot systems with few electrons are investigated by means of analytic, configuration-interaction, and mean-field methods. The combined effect of a high magnetic field, electrostatic confinement, and inter-dot coupling, induces a new class of few-electron ground states absent in single quantum dots. In particular, the role played by the isospin (or quantum dot index) in determining the appearance of new ground states is analyzed and compared with the role played by the standard spin.

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