Correlated few-particle states in artificial bipolar molecule

Details Correlated few-particle states in artificial bipolar molecule Correlated few-particle states in artificial bipolar molecule

2002-03-22

arxiv.org/abs/cond-mat/0203474v1

Phys. Rev. B 65, 233302 (2002).

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 Physical Review style pages, 4 eps figures embedded, uses REVTeX 4 and graphicx package

Scientific paper

10.1103/PhysRevB.65.233302

We investigate the ground and excited states of a bipolar artificial molecule composed of two vertically coupled quantum dots containing different type of carriers -- electrons and holes -- in equilibrium. The approach based on exact diagonalization is used and reveals an intricate pattern of ground-state angular momentum switching and a rearrangement of approximate single-particle levels as a function of the inter-dot coupling strength.

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