Quantum interference effects in particle transport through square lattices
Statistical Mechanics
2009-11-10 v1 Mesoscale and Nanoscale Physics
Abstract
We study the transport of a quantum particle through square lattices of various sizes by employing the tight-binding Hamiltonian from quantum percolation. Input and output semi-infinite chains are attached to the lattice either by diagonal point to point contacts or by a busbar connection. We find resonant transmission and reflection occuring whenever the incident particle's energy is near an eigenvalue of the lattice alone (i.e., the lattice without the chains attached). We also find the transmission to be strongly dependent on the way the chains are attached to the lattice.
Cite
@article{arxiv.cond-mat/0406660,
title = {Quantum interference effects in particle transport through square lattices},
author = {E. Cuansing and H. Nakanishi},
journal= {arXiv preprint arXiv:cond-mat/0406660},
year = {2009}
}
Comments
4 pages, 6 figures, submitted to Phys. Rev. E