Title
Few-particle states in coupled electron-hole quantum dots Few-particle states in coupled electron-hole quantum dots
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
conferenceObject
Publication
Subject
Physics
Source (journal)
Proceedings of the Conference Progress in Nonequilibrium Green's
Functions II
Source (book)
Conference on Progress in Nonequilibrium Greens Functions, AUG 19-23, 2002, Dresden, GERMANY
Volume/pages
(2003) , p. 330-337
ISBN
981-238-271-2
ISI
000229502400029
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We apply the exact diagonalization technique to calculate the ground and excited states of a bipolar artificial molecule composed of two vertically coupled quantum dots containing different types of carriers electrons and holes in equilibrium. In this system, the magnetic field tunes the relative role of intra-dot Coulomb interaction while the inter-dot separation sets the strength of inter-dot correlations. We find an intricate pattern of the switching of the ground-state angular momentum with increasing magnetic field and a rearrangement of approximate single-particle levels as a function of the inter-dot coupling strength.
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