Enhancement of electron-positron pair creation due to transient excitation of field-induced bound states

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	Enhancement of electron-positron pair creation due to transient excitation of field-induced bound states
	Jiang, M ; Lv, QZ ; Sheng, ZM ; Grobe, R ; Su, Q
刊名	PHYSICAL REVIEW A
	2013
卷号	87 期号:4
ISSN号	1050-2947
通讯作者	Jiang, M (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	We study the creation of electron-positron pairs induced by two spatially separated electric fields that vary periodically in time. The results are based on large-scale computer simulations of the time-dependent Dirac equation in reduced spatial dimensions. When the separation of the fields is very large, the pair creation is caused by multiphoton transitions and mainly determined by the frequency of the fields. However, for small spatial separations a coherence effect can be observed that can enhance or reduce the particle yield compared to the case of two infinitely separated fields. If the travel time for a created electron or positron between both field locations becomes comparable to the period of the oscillating fields, we observe peaks in the energy spectrum which can be explained in terms of field-induced transient bound states. DOI: 10.1103/PhysRevA.87.042503
资助信息	NSF; NSFC [11128409, 11121504]
语种	英语
公开日期	2014-01-16
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/56971]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Jiang, M,Lv, QZ,Sheng, ZM,et al. Enhancement of electron-positron pair creation due to transient excitation of field-induced bound states[J]. PHYSICAL REVIEW A,2013,87(4).
APA	Jiang, M,Lv, QZ,Sheng, ZM,Grobe, R,&Su, Q.(2013).Enhancement of electron-positron pair creation due to transient excitation of field-induced bound states.PHYSICAL REVIEW A,87(4).
MLA	Jiang, M,et al."Enhancement of electron-positron pair creation due to transient excitation of field-induced bound states".PHYSICAL REVIEW A 87.4(2013).