TIME-DEPENDENT EVOLUTION OF A WAVE PACKET IN QUANTUM SYSTEMS

被引：0

作者：

Tang, Chi-Shung ^{[1
]}

Luan, Pi-Gang ^{[2
]}

机构：

[1] Natl United Univ, Dept Mech Engn, Maioli 36003, Taiwan

[2] Natl Cent Univ, Dept Opt & Photon, Chungli 32054, Taiwan

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2008年 / 22卷 / 24期

关键词：

Time-dependent; wave packet; quantum system; Ehrenfest theorem; Lewis-Riesenfeld;

D O I：

10.1142/S0217979208048887

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We consider wave packet propagation in mesoscopic quantum systems. A number of approaches are compared to look at the general solution of a time-dependent Schrodinger equation and the validity of the Ehrenfest theorem. Detailed calculations are presented to illustrate the results of a charged particle motion in the time-dependent systems, and show that the Ehrenfest theorem is not directly applicable in topologically nontrivial systems.

引用

页码：4225 / 4241

页数：17

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