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Ionization energies and term energies of the ground states 1s^22s of lithium-like systems 被引量:2
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作者 李金英 王治文 《Chinese Physics B》 SCIE EI CAS CSCD 2014年第1期187-191,共5页
We extend the Hamiltonian method of the full-core plus correlation (FCPC) by minimizing the expectation value to calculate the non-relativistic energies and the wave functions of ls22s states for the lithium-like sy... We extend the Hamiltonian method of the full-core plus correlation (FCPC) by minimizing the expectation value to calculate the non-relativistic energies and the wave functions of ls22s states for the lithium-like systems from Z = 41 to 50. The mass-polarization and the relativistic corrections including the kinetic-energy correction, the Darwin term, the electron-electron contact term, and the orbit-orbit interaction are calculated perturbatively as first-order correction. The contribution from quantum electrodynamic (QED) is also explored by using the effective nuclear charge formula. The ionization potential and term energies of the ground states 1 s22s are derived and compared with other theoretical calculation results. It is shown that the FCPC methods are also effective for theoretical calculation of the ionic structure for high nuclear ion of lithium-like systems. 展开更多
关键词 lithium-like systems full core plus correlation ionization energy term energy
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Total Atomic Scattering Factors of 1s^23s ~2S States for Lithium Isoelectronic Sequence
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作者 CHEN Chao WANG Zhi-Wen 《Communications in Theoretical Physics》 SCIE CAS CSCD 2008年第8期473-476,共4页
Total atomic scattering factors for the 1s^23s ^2S stages for the lithium isoelectronic sequence from Z = 3 - 10 are calculated by using the full core plus correlation wave function. The influence of electron correlat... Total atomic scattering factors for the 1s^23s ^2S stages for the lithium isoelectronic sequence from Z = 3 - 10 are calculated by using the full core plus correlation wave function. The influence of electron correlation on total atomic scattering factors is considered sufficiently in our calculation. For the 1s^2 3s ^2S states of the lithium isoelectronic sequence, the general functional behaviour of total atomic scattering factors is analyzed together for each state of the isoelectronic sequence. 展开更多
关键词 total atomic scattering factors electron correlation full core plus correlation method
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