Scattering of a Gaussian wave packet by a reflectionless potential
作者:
N. Kiriushcheva,
S. Kuzmin,
期刊:
American Journal of Physics
(AIP Available online 1998)
卷期:
Volume 66,
issue 10
页码: 867-872
ISSN:0002-9505
年代: 1998
DOI:10.1119/1.18985
出版商: American Association of Physics Teachers
关键词: 03.65;03.80
数据来源: AIP
摘要:
The specific features of scattering of the Gaussian wave packet by the simplest of all reflectionless potentials, the Sech-squared well, are considered. The results of numerical computation show that a wave packet that has passed through this potential overtakes a free wave packet and is both higher and narrower than a free wave packet; in other words, the scattered wave packet accelerates inside the well and preserves its shape better. Comparisons with scattering by the square well and by a series of reflectionless potentials are also presented. Possible applications of the Sech-squared as well as other reflectionless potentials are discussed.
点击下载:
PDF
(116KB)
返 回