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Exact eigenstates and transmission for two interacting electrons on quantum dots
Author(s) -
Aharony A.,
EntinWohlman O.,
Levinson Y.,
Imry Y.
Publication year - 1999
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/(sici)1521-3889(199911)8:7/9<685::aid-andp685>3.0.co;2-7
Subject(s) - physics , quantum dot , electron , coulomb blockade , renormalization , quantum mechanics , condensed matter physics , delocalized electron , principal quantum number , quantum , scattering , quantum dissipation , transistor , voltage
The eigenstates and the scattering transmission for two interacting electrons are found exactly for I quantum dots, including the hybridization with the states on the leads. The results imply limitations on the validity of the Coulomb blockade picture. The ground states for I = 1, 2 on a one–dimensional chain (modeling single and double quantum dots) exhibit quantum delocalization and magnetic transitions. The effective transmission T of two interacting electrons through one impurity ( I = 1) is enhanced by a renormalization of the repulsive interaction, when one of the electrons is captured in a strongly localized state.