1999/02/17 by B. Partoens, Partoens, B., A. Matulis +3
Engineering · Physics and Astronomy · #Advanced Chemical Physics Studies #FOS: Physical sciences #Molecular Junctions and Nanostructures #Quantum and electron transport phenomena #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.str-el
paper · pdf · doi:10.48550/arxiv.cond-mat/9902240
paper withdrawn
openalex publication_date 1999/02/17 · arxiv created 1999/05/24 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The electronic structure of two vertically coupled quantum dots containing two electrons is investigated in the presence of interdot tunneling. Our approach also includes the interdot exchange and we find that the tunneling is affected by the Coulomb interaction. There is an interplay between direct tunneling, the interdot exchange and the Coulomb interaction influence on the tunneling, which can lead to a zero angular momentum spin-singlet - spin-triplet transition of the ground state, even in the absence of a magnetic field.