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用推广的等效两体方法求解类氦离子三体问题
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作者 林祁斛 任中洲 《原子核物理评论》 CAS CSCD 北大核心 2009年第3期231-237,共7页
介绍了求解三体问题的等效两体方法,将等效两体方法推广到原子系统,利用该方法求解类氦离子的基态,与一般的单参数变分法相比得到了与实验值符合得更好的结果,进而利用双参数变分法对所得结果进行了检验。结果表明,等效两体方法同样适... 介绍了求解三体问题的等效两体方法,将等效两体方法推广到原子系统,利用该方法求解类氦离子的基态,与一般的单参数变分法相比得到了与实验值符合得更好的结果,进而利用双参数变分法对所得结果进行了检验。结果表明,等效两体方法同样适用于求解原子系统中的三体问题。 展开更多
关键词 三体问题 等效两体方法 变分法 类氦离子
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Bound 0^(+) Excited States of Three-Body Systems with Short-Range Two-Body Interactions
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作者 LIN Qi-Hu REN Zhong-Zhou 《Chinese Physics Letters》 SCIE CAS CSCD 2013年第5期37-39,共3页
The Faddeev equations are solved to investigate the bound states of three-body systems with short-range two-body interactions. Different bound 0^(+) excited states are obtained depending on the mass ratios of particle... The Faddeev equations are solved to investigate the bound states of three-body systems with short-range two-body interactions. Different bound 0^(+) excited states are obtained depending on the mass ratios of particles, when there is no bound state for two-body sub-systems. On the one hand, a number of bound 0^(+) excited states appear in the system with two heavy particles and a light particle. On the other hand, a weakly bound 0^(+) excited state is obtained in the system with two light particles and a heavy particle, which has not been reported in previous works as far as we know. 展开更多
关键词 EXCITED STATES WEAKLY
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Diffusion Monte Carlo calculations of three-body systems
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作者 吕梦蛟 任中洲 林祁斛 《Chinese Physics C》 SCIE CAS CSCD 2012年第11期1065-1068,共4页
The application of the diffusion Monte Carlo algorithm in three-body systems is studied. We develop a program and use it to cMculate the property of various three-body systems. Regular Coulomb systems such as atoms, m... The application of the diffusion Monte Carlo algorithm in three-body systems is studied. We develop a program and use it to cMculate the property of various three-body systems. Regular Coulomb systems such as atoms, molecules, and ions are investigated. The calculation is then extended to exotic systems where electrons are replaced by muons. Some nuclei with neutron halos are also calculated as three- body systems consisting of a core and two external nucleons. Our results agree well with experiments and others' work. 展开更多
关键词 diffusion Monte Carlo three-body system neutron-halo nuclei
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