2008/06/03 by Ioan Bâldea, Ioan Baldea, Horst Köppel +1
Chemistry · Engineering · Mathematics · Physics and Astronomy · #Boundary (topology) #Chemistry #Condensed matter physics #Conductance #Electron #Electron transport chain #Function (biology) #Linear response theory #Mathematical analysis #Mathematics #Molecular Junctions and Nanostructures #Physics #Quantum #Quantum and electron transport phenomena #Quantum mechanics #Statistical physics #Surface and Thin Film Phenomena #Wigner distribution function #Zero (linguistics) #cond-mat.other #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.78.115315
published as Phys. Rev. B 78, 115315 (2008) · 22 pages, 7 figure
arxiv created 2008/06/03 · openalex publication_date 2008/09/19 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We have implemented the linear response approximation of a method proposed to compute the electron transport through correlated molecules based on the time-independent Wigner function [P. Delaney and J. C. Greer, Phys. Rev. Lett. 93, 036805 (2004)]. The results thus obtained for the zero-bias conductance through a quantum dot both without and with correlations demonstrate that this method is neither quantitatively nor qualitatively able to provide a correct physical description of the electric transport through nanosystems. We present an analysis indicating that the failure is due to the manner of imposing the boundary conditions and that it cannot be simply remedied.