Ziegler, R. and Bruder, C. and Schoeller, H.. (2000) Transport through double quantum dots. Physical Review B, Vol. 62, H. 3. pp. 19611970.
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Official URL: http://edoc.unibas.ch/dok/A6337405
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Abstract
We study transport through two quantum dots in series. Electronelectron interactions are taken into account in the capacitive model with an additional interdot capacitance. The tunneling rates between the dots and the outside reservoirs are assumed to be weak, therefore we treat it perturbatively and derive a master equation. The interdot tunneling is treated in two limits: weak interdot tunneling is included perturbatively, whereas in the opposite limit we assume that there is only one level in the dot in the relevant energy range such that the Hamiltonian of the dots can be diagonalized exactly. We calculate the current through the structure as a function of the two gate voltages. The wellknown Coulomb oscillations of a single dot are changed into a characteristic structure of boomeranglike shape. The transport and gate voltages can be timedependent, and in this case we find that the dependence of the Coulomb oscillations on the two gate voltages allows us to identify which level dominates the transport.
Faculties and Departments:  05 Faculty of Science > Departement Physik > Physik > Theoretische Physik (Bruder) 

UniBasel Contributors:  Bruder, Christoph 
Item Type:  Article, refereed 
Article Subtype:  Research Article 
Publisher:  American Institute of Physics 
ISSN:  01631829 
Note:  Publication type according to Uni Basel Research Database: Journal article 
Identification Number: 

Last Modified:  06 Feb 2015 09:59 
Deposited On:  06 Feb 2015 09:59 
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