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题名: Positronium Decay in a Circular Polarized Laser Field
作者: Chen, YQ ;  Wu, P
刊名: COMMUNICATIONS IN THEORETICAL PHYSICS
出版日期: 2013
卷号: 60, 期号:6, 页码:747-752
关键词: SCATTERING ;  WAVE
学科分类: Physics
通讯作者: Chen, YQ (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China.
部门归属: [Chen Yu-Qi; Wu Pei] Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China
英文摘要: We calculate the lifetime of both the o-Ps and the p-Ps positronium annihilation decay Ps -> gamma gamma in the strong circular polarized laser field. We take a strategy of the factorization to separate the effects caused by the Coulomb interaction and the strong laser field interaction. It is factorized in the time direction but not in the space direction. Our results show that in the laser with long wavelength and high intensity, the lifetimes of those Ps states are dramatically increased. For CO2 laser with 10 mu m wavelength and 10(13) W/cm(2) intensity, lifetime of the spin-single positronium is increased by 10(8) times. Our result is consistent with those obtained by solving the Schodinger equation. This effect may be useful for the high harmonic generation (HHG) effects provided with the Ps [Phys. Rev. Lett. 70 (1993) 774; Phys. Rev. Lett. 93 (2004) 013601].
资助者: National Natural Science Foundation of China [11275242]
收录类别: SCI
语种: 英语
WOS记录号: WOS:000330882300019
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15216
Appears in Collections:理论物理所2013年知识产出 _期刊论文

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Recommended Citation:
Chen, YQ,Wu, P. Positronium Decay in a Circular Polarized Laser Field[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2013,60(6):747-752.
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