Title
Modeling single-particle energy levels and resonance currents in a coherent electronic quantum dot mixer Modeling single-particle energy levels and resonance currents in a coherent electronic quantum dot mixer
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
New York, N.Y. :American Institute of Physics ,
Subject
Physics
Source (journal)
Applied physics letters / American Institute of Physics. - New York, N.Y., 1962, currens
Volume/pages
94(2009) :22 , p. 222101,1-22101,3
ISSN
0003-6951
1077-3118
ISI
000266674300024
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We present model calculations based on a coherent tunneling picture, which reproduce well both the single-particle energy level position and the resonant current strength at two typical anticrossings, one involving two levels and the other three levels in a coherent mixer composed of two weakly coupled vertical quantum dots. An essential ingredient is the inclusion of higher degree terms to account for deviations from an ideal elliptical parabolic confining potential in realistic dots. We also calculate density plots of the mixed states for the modified potential.
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