Publication
Title
Quantized conductance without reservoirs : method of the nonequilibrium statistical operator
Author
Abstract
We introduce a generalized non-equilibrium statistical operator (NSO) to study a current-carrying system. The NSO is used to derive a set of quantum kinetic equations based on quantum mechanical balance equations. The quantum kinetic equations are solved self-consistently together with Poissons equation to solve a general transport problem. We show that these kinetic equations can be used to rederive the Landauer formula for the conductance of a quantum point contact, without any reference to reservoirs at different chemical potentials. Instead, energy dissipation is taken into account explicitly through the electron-phonon interaction. We find that both elastic and inelastic scattering are necessary to obtain the Landauer conductance.
Language
English
Source (journal)
Journal of computational electronics. - Place of publication unknown
Publication
Place of publication unknown : 2007
ISSN
1569-8025
Volume/pages
6:1/3(2007), p. 255-258
ISI
000208473600062
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 10.06.2011
Last edited 07.11.2017
To cite this reference