Impurity Scattering of Wave Packets on a Lattice
Disordered Systems and Neural Networks
2009-11-11 v1 Mesoscale and Nanoscale Physics
Abstract
Quantum transport in a lattice is distinct from its counterpart in continuum media. Even a free wave packet travels differently in a lattice than in the continuum. We describe quantum scattering in a one dimensional lattice using three different formulations and illustrate characteristics of quantum transport such as resonant transmission. We demonstrate the real time propagation of a wave packet and its phase shift due to impurity configurations. Spin-flip scattering is also taken into account in a spin chain system. We show how individual spins in the chain evolve as a result of a spin-flip interaction between an incoming electron and a spin chain.
Cite
@article{arxiv.cond-mat/0604261,
title = {Impurity Scattering of Wave Packets on a Lattice},
author = {Wonkee Kim and L. Covaci and F. Marsiglio},
journal= {arXiv preprint arXiv:cond-mat/0604261},
year = {2009}
}
Comments
submitted to Phys. Rev. B