Generalized Holstein model for spin-dependent electron-transfer reactions

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	Generalized Holstein model for spin-dependent electron-transfer reactions
	Sun, CP
刊名	PHYSICAL REVIEW A
	2012
卷号	85 期号:3 页码:32707
关键词	MAGNETORECEPTION COHERENCE MECHANISM MOTION SALTS BIRDS
ISSN号	1050-2947
通讯作者	Yang, LP (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China.
英文摘要	Some chemical reactions are described by electron transfer (ET) processes. The underlying mechanism could be modeled as a polaron motion in the molecular crystal-the Holstein model. By taking spin degrees of freedom into consideration, we generalize the Holstein model (molecular crystal model) to microscopically describe an ET chemical reaction. In our model, the electron spins in the radical pair simultaneously interact with a magnetic field and their nuclear-spin environments. By virtue of the perturbation approach, we obtain the chemical reaction rates for different initial states. It is discovered that the chemical reaction rate of the triplet state demonstrates its dependence on the direction of the magnetic field while the counterpart of the singlet state does not. This difference is attributed to the explicit dependence of the triplet state on the direction when the axis is rotated. Our model may provide a possible candidate for the microscopic origin of the avian compass.
学科主题	Physics
收录类别	SCI
资助信息	National Natural Science Foundation of China [10935010, 11074261]
原文出处	http://dx.doi.org/10.1103/PhysRevA.85.032707
语种	英语
WOS记录号	WOS:000301517000003
公开日期	2014-04-25
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15140]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Sun, CP. Generalized Holstein model for spin-dependent electron-transfer reactions[J]. PHYSICAL REVIEW A,2012,85(3):32707.
APA	Sun, CP.(2012).Generalized Holstein model for spin-dependent electron-transfer reactions.PHYSICAL REVIEW A,85(3),32707.
MLA	Sun, CP."Generalized Holstein model for spin-dependent electron-transfer reactions".PHYSICAL REVIEW A 85.3(2012):32707.