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Title: Scattering of electrons from an interacting region
Authors: Dhar, Abhishek
Sen, Diptiman
Roy, Dibyendu
Issue Date: 8-Aug-2008
Publisher: American Physical Society
Citation: Physical Review Letters, 2008, Vol.101, p066805
Abstract: We address the problem of transmission of electrons between two noninteracting leads through a region where they interact (quantum dot). We use a model of spinless electrons hopping on a one-dimensional lattice and with an interaction on a single bond. We show that all two-particle scattering states can be found exactly. Comparisons are made with numerical results on the time evolution of a two-particle wave packet, and several interesting features are found. For N particles, the scattering state is obtained within a two-particle scattering approximation. For a dot connected to Fermi seas at different chemical potentials, we find an expression for the change in the Landauer current resulting from the interactions on the dot. We end with some comments on the case of spin-1/2 electrons.
Description: Open Access
ISSN: E-ISSN: 1079-7114
P-ISSN: 0031-9007
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Copyright: 2008 The American Physical Society
Appears in Collections:Research Papers (TP)

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