Nonuniversal transmission phase lapses through a quantum dot: An exact-diagonalization of the many-body transport problem
Mesoscale and Nanoscale Physics
2008-09-25 v2 Strongly Correlated Electrons
Abstract
Systematic trends of nonuniversal behavior of electron transmission phases through a quantum dot, with no phase lapse for the transition N=1 -> N=2 and a lapse of pi for the N=2 -> N=3 transition, are predicted, in agreement with experiments, from many-body transport calculations involving exact diagonalization of the dot Hamiltonian. The results favor shape anisotropy of the dot and strong e-e repulsion with consequent electron localization, showing dependence on spin configurations and the participation of excited doorway transmission channels.
Keywords
Cite
@article{arxiv.0802.1064,
title = {Nonuniversal transmission phase lapses through a quantum dot: An exact-diagonalization of the many-body transport problem},
author = {Leslie O. Baksmaty and Constantine Yannouleas and Uzi Landman},
journal= {arXiv preprint arXiv:0802.1064},
year = {2008}
}
Comments
Published version. REVTEX4. 4 pages with 3 color figures. For related papers, see http://www.prism.gatech.edu/~ph274cy/