Linear chain of coupled quantum dots
نویسندگان
چکیده
منابع مشابه
Correlated charge polarization in a chain of coupled quantum dots
Coherent charge transfer in a linear array of tunnel-coupled quantum dots, electrostatically coupled to external gates, is investigated using the Bethe ansatz for a symmetrically biased Hubbard chain. Charge polarization in this correlated system is shown to proceed via two distinct processes: formation of bound states in the metallic phase, and charge transfer processes corresponding to a supe...
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An asymmetric pair of coupled InAs quantum dots is tuned into resonance by applying an electric field so that a single hole forms a coherent molecular wave function. The optical spectrum shows a rich pattern of level anticrossings and crossings that can be understood as a superposition of charge and spin configurations of the two dots. Coulomb interactions shift the molecular resonance of the o...
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We consider two coupled generic quantum dots, each modelled by a simple potential which is given by infinite parabolic potential wells in all three (x-, y-, z-) dimensions. This potential profile allows the derivation of an analytical expression for the inter-dot Förster coupling, in the dipole-dipole approximation. We investigate the energy level behaviour of this coupled two-dot system under ...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 1997
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.56.r4344