Excitation of large-scale delocalized quantum state by local interactions

doi:10.1209/0295-5075/92/17005

	Excitation of large-scale delocalized quantum state by local interactions
	Lin, Z. Z.1; Ming, C.1; Wang, Y.1; Zhang, W.2; Zhuang, J.2; Ning, X. J.1
刊名	EPL
	2010-10-01
卷号	92 页码:6
ISSN号	0295-5075
DOI	10.1209/0295-5075/92/17005
英文摘要	It seems impossible to establish the population Rabi oscillation between two delocalized states by a resonant electromagnetic wave beam focused in a local area because the interaction information would be simultaneously propagated to every spatial point of the system, breaking relativistic causality. We examined this issue in an ideal model of a single electron moving in a one-dimensional box and in a realistic system of a monatomic carbon chain, showing that the resonant Rabi oscillation cannot be established until the initial wave package, formed by many other far-off-resonant states, transports from the interaction area crossing over all the system space. Furthermore, it is demonstrated that the two-level approximation is good when the duration of laser pumping is long enough, and if the laser interaction area is shorter than 10% of the system size, it is very difficult to pump the population of the ground state to excited ones at finite temperatures. Copyright (C) EPLA, 2010
资助项目	Major State Basic Research Development Program of China[2010CB933800] ; Shanghai Leading Academic Discipline Project[B107]
WOS关键词	TIGHT-BINDING METHOD ; COMPLEX MATERIALS ; SIMULATIONS ; DYNAMICS ; EFFICIENT
WOS研究方向	Physics
语种	英语
出版者	EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
WOS记录号	WOS:000284469900028
资助机构	Major State Basic Research Development Program of China ; Shanghai Leading Academic Discipline Project
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/32897]
专题	中国科学院近代物理研究所
通讯作者	Lin, Z. Z.
作者单位	1.Fudan Univ, Dept Nucl Sci & Technol, Inst Modern Phys, Appl Ion Beam Phys Lab, Shanghai 200433, Peoples R China 2.Fudan Univ, Dept Opt Sci & Engn, Shanghai 200433, Peoples R China
推荐引用方式 GB/T 7714	Lin, Z. Z.,Ming, C.,Wang, Y.,et al. Excitation of large-scale delocalized quantum state by local interactions[J]. EPL,2010,92:6.
APA	Lin, Z. Z.,Ming, C.,Wang, Y.,Zhang, W.,Zhuang, J.,&Ning, X. J..(2010).Excitation of large-scale delocalized quantum state by local interactions.EPL,92,6.
MLA	Lin, Z. Z.,et al."Excitation of large-scale delocalized quantum state by local interactions".EPL 92(2010):6.