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题名: Dynamic effect of Bloch electrons in time-periodic electric fields
作者: Zhao, XG
刊名: SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY
出版日期: 1998
卷号: 41, 期号:1, 页码:64-70
关键词: CHARGED-PARTICLE ;  OSCILLATIONS ;  LOCALIZATION ;  SUPERLATTICES ;  BAND
学科分类: Physics
通讯作者: Zhao, XG , Inst Appl Phys & Computat Math, POB 8009, Beijing 100088, Peoples R China.
部门归属: Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: The dynamic effect of Bloch electrons under the action of temporally periodic electric fields is studied. The explicit solutions for the quasienergies and the Floquet states are obtained exactly and generally, from which the localized or extended nature of Floquet states is demonstrated to be controlled by a reduced vector potential in one period of electric fields. When this reduced vector potential is an irrational, all the Floquet states are localized except the cases where the reduced vector potential is extremely well approximated by rationals(i.e., a Liouvilie number) and simultaneously the instersite hopping does not decay fast enough, for which the Floquet states are found to be more and more extended at large distances. When this reduced vector potential approaches an ordinary rational, all the Floquet states are extended. However, if the reduced vector potential has typical Diophantine properties, and if the intersite hopping decreases fast enough, the Floquet states cannot be extended.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000071614500009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12391
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. Dynamic effect of Bloch electrons in time-periodic electric fields[J]. SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY,1998,41(1):64-70.
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