arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv quant-ph/0008077quant-phcond-mathep-phhep-thnucl-th
收藏

波的衍射包在空间和时间中的衍射

Diffraction of wave packets in space and time

G. Kälbermann

摘要:

描述了空间和时间上的波包衍射现象。它存在于衍射图案中,其空间位置随时间而变化。这种斑图是由波包量子散射在一个吸引或排斥的与时间无关的势场中产生的。推导了一维和三维情况下$t\to\infty$处的模式解析公式。发展了该模式存在的条件。对一维狄拉克方程的数值解和解析解也证明了这一现象。实验验证的现象进行了描述和数值模拟。

英文摘要:

The phenomenon of wave packet diffraction in space and time is described. It consists in a diffraction pattern whose spatial location progresses with time. The pattern is produced by wave packet quantum scattering off an attractive or repulsive time independent potential. An analytical formula for the pattern at $t\to\infty$ is derived both in one dimension and in three dimensions. The condition for the pattern to exist is developed. The phenomenon is shown numerically and analytically for the Dirac equation in one dimension also. An experiment for the verification of the phenomenon is described and simulated numerically.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑