Coherent state of the Dirac oscillator

被引：39
|
作者：
Nogami, Y [1 ]
Toyama, FM [1 ]
机构：
[1] KYOTO SANGYO UNIV,DEPT INFORMAT & COMMUN,KYOTO 603,JAPAN
来源：
CANADIAN JOURNAL OF PHYSICS | 1996年 / 74卷 / 3-4期
关键词：
D O I：
10.1139/p96-018
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A coherent state of the Dirac oscillator in (1+1) dimensions is constructed. This is a relativistic extension of Schrodinger's coherent state of the nonrelativistic harmonic oscillator. There are interesting differences between the Dirac and the Schrodinger cases. In the Dirac case, the coherent state spreads out in time but after a while the original coherent state is nearly restored. Then it spreads again. This process recurs but in an aperiodic manner. In addition, the expectation value of coordinate x for the coherent state exhibits Zitterbewegung. The possibility of an analogue of Ehrenfest's theorem is discussed.
引用
收藏
页码：114 / 121
页数：8
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