WKB approximation for multi-channel barrier penetrability
核理论
2009-11-10 v1 量子物理
摘要
Using a method of local transmission matrix, we generalize the well-known WKB formula for a barrier penetrability to multi-channel systems. We compare the WKB penetrability with a solution of the coupled-channels equations, and show that the WKB formula works well at energies well below the lowest adiabatic barrier. We also discuss the eigen-channel approach to a multi-channel tunneling, which may improve the performance of the WKB formula near and above the barrier.
引用
@article{arxiv.nucl-th/0404092,
title = {WKB approximation for multi-channel barrier penetrability},
author = {K. Hagino and A. B. Balantekin},
journal= {arXiv preprint arXiv:nucl-th/0404092},
year = {2009}
}
备注
15 pages, 4 eps figures