Classical Aspects of Quantum Walls in One Dimension
Abstract
We investigate the system of a particle moving on a half line x >= 0 under the general walls at x = 0 that are permitted quantum mechanically. These quantum walls, characterized by a parameter L, are shown to be realized as a limit of regularized potentials. We then study the classical aspects of the quantum walls, by seeking a classical counterpart which admits the same time delay in scattering with the quantum wall, and also by examining the WKB-exactness of the transition kernel based on the regularized potentials. It is shown that no classical counterpart exists for walls with L < 0, and that the WKB-exactness can hold only for L = 0 and L = infinity.
Cite
@article{arxiv.quant-ph/0111057,
title = {Classical Aspects of Quantum Walls in One Dimension},
author = {Tamas Fulop and Taksu Cheon and Izumi Tsutsui},
journal= {arXiv preprint arXiv:quant-ph/0111057},
year = {2009}
}
Comments
TeX, 21 pages, 4 figures. v2: some parts of the text improved, new and improved figures