Abstract
We analyze nonequilibrium electronic transport properties of a typical interacting three-site quantum wire model within Hartree-Fock approximation making use of Keldysh formalism. Some rigorous formulas are provided for direct calculations when Coulomb repulsion is present. According to numerical calculations using above formulas, we investigate the conductance, transport currents, and on site electronic charges of the wire on some special occasions in the interacting case, and also compare them with the results in the noninteracting case.
Highlights
With advantage of top-down and bottom-up fabrication techniques for nanometer scale structures, it becomes possible to create quantum wire (QW) with the diameter of the order of the Fermi wavelength, and to experimentally study the quantum transport properties through them [1] [2]
According to numerical calculations using above formulas, we investigate the conductance, transport currents, and on site electronic charges of the wire on some special occasions in the interacting case, and compare them with the results in the noninteracting case
The rigorous formulas of conductance, transport current and charge distributions for the three-site QW model are provided within Hartree-Fock approximation, based on the nonequilibrium transport theory (Keldysh formalism) [3] [4] [5]
Summary
With advantage of top-down and bottom-up fabrication techniques for nanometer scale structures, it becomes possible to create quantum wire (QW) with the diameter of the order of the Fermi wavelength, and to experimentally study the quantum transport properties through them [1] [2]. We present some theoretical formulas and numerical results for nonequilibrium electronic transport, using a simplest interacting model of three-site QW, in which each site has a single level. This method could be extended to analyze the non-. The rigorous formulas of conductance, transport current and charge distributions for the three-site QW model are provided within Hartree-Fock approximation, based on the nonequilibrium transport theory (Keldysh formalism) [3] [4] [5]. It is reasonable to consider that the results of our study are available in the complicated case of actual QWs which are probably longer and thicker containing a larger number of atoms (sites) having multiple levels
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
