Wavepacket diffraction in the Kronig-Penney model
凝聚态物理
2009-11-07 v1
摘要
The phenomenon of wavepacket diffraction in space and time is investigated numerically and analytically, for a one-dimensional array of equally spaced finite-depth wells. Theoretical predictions for the lattice at long times and at low scattering energies, coincide exactly with the results for a single well. At intermediate and short times compared to the classical passage time, the pattern shows both a broad diffractive pattern and an interference pattern inside each diffractive peak. The diffractive structure persists for this case to infinite time.
引用
@article{arxiv.cond-mat/0107522,
title = {Wavepacket diffraction in the Kronig-Penney model},
author = {G. Kälbermann},
journal= {arXiv preprint arXiv:cond-mat/0107522},
year = {2009}
}
备注
Latex format,5 eps figures