Strong magnetic-field effects on the states of the helium negative ion below the He (N=2) threshold

CORC > 武汉物理与数学研究所 > 中国科学院武汉物理与数学研究所 > 2011年以前论文发表（包括2011年）

	Strong magnetic-field effects on the states of the helium negative ion below the He (N=2) threshold
	Guan, XX ; Li, BW ; Wu, LJ
刊名	PHYSICAL REVIEW A
	2001-10-01
卷号	64 期号:4
英文摘要	Energy levels of the 1s 2l2l' S-2(e) and P-2,4(e,o) states of the helium negative ion in magnetic-field strengths up to 4.7011 x 10(4) T are calculated by using the multiconfiguration interaction approach. The extended full core plus correlation (FCPC) method and the saddle-point technique are used to construct the nonrelativistic wave functions. We have observed that the field effects on the states considered are quite unusual. In the presence of a magnetic field. three previously unobserved stable states associated with the helium 1s2p P-1 and 1s2s S-3 thresholds are predicted. The possibility of attracting an extra electron by the parent 1s(2) state is also analyzed in the low and medium regime (beta less than or equal to0.1 a.u.). The opening of new decay channels of the 1s2 s(2) S-2 resonance state connected with the higher threshold due to field effects is analyzed. Two significantly different resonance mechanisms for the 1s2 s(2) state are proposed and discussed briefly.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Optics ; Physics, Atomic, Molecular & Chemical
研究领域[WOS]	Optics ; Physics
关键词[WOS]	SADDLE-POINT TECHNIQUE ; AUTOIONIZING STATES ; ELASTIC-SCATTERING ; EXCITED-STATES ; LITHIUM ATOM ; RESONANCES ; ENERGIES ; BINDING
收录类别	SCI
语种	英语
WOS记录号	WOS:000171609900086
公开日期	2015-12-08
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/8636]
专题	武汉物理与数学研究所_2011年以前论文发表（包括2011年）
作者单位	1.Chinese Acad Sci, Wuhan Inst Phys & Math, Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 2.Chinese Ctr Adv Sci & Technol, World Lab, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Guan, XX,Li, BW,Wu, LJ. Strong magnetic-field effects on the states of the helium negative ion below the He (N=2) threshold[J]. PHYSICAL REVIEW A,2001,64(4).
APA	Guan, XX,Li, BW,&Wu, LJ.(2001).Strong magnetic-field effects on the states of the helium negative ion below the He (N=2) threshold.PHYSICAL REVIEW A,64(4).
MLA	Guan, XX,et al."Strong magnetic-field effects on the states of the helium negative ion below the He (N=2) threshold".PHYSICAL REVIEW A 64.4(2001).