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题名: MOTION OF BLOCH ELECTRONS IN TIME-DEPENDENT ELECTRIC-FIELDS WITH OFF-DIAGONAL EFFECTS
作者: ZHAO, XG
刊名: PHYSICS LETTERS A
出版日期: 1992
卷号: 167, 期号:3, 页码:291-294
关键词: TIGHTLY BOUND ELECTRONS ;  DYNAMIC LOCALIZATION ;  CHARGED-PARTICLE
学科分类: Physics
通讯作者: ZHAO, XG , CHINA CTR ADV SCI & TECHNOL,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.
部门归属: ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA
英文摘要: Taking into account the off-diagonal matrix elements of the position operator, the motion of Bloch electrons in a one-dimensional lattice under the action of an arbitrary time-dependent electric field is investigated. The exact solutions for the evolution amplitudes and the mean-square displacement are obtained in the case of a one-band approximation. The evolution behavior of Bloch electrons in several types of electric fields is discussed. It has been found that the off-diagonal matrix elements of the position operator only quantitatively affect the dynamic localization and delocalization of Bloch electrons previously obtained without considering this effect.
收录类别: SCI
原文出处: 查看原文
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12147
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
ZHAO, XG. MOTION OF BLOCH ELECTRONS IN TIME-DEPENDENT ELECTRIC-FIELDS WITH OFF-DIAGONAL EFFECTS[J]. PHYSICS LETTERS A,1992,167(3):291-294.
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