The 1s(2) -> 1s2p(P-1) excitation energy for helium atoms in liquid helium, solid helium and helium bubbles in metals

Pyper NC.; Whelan CT.; Essex DW.

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The 1s(2) -> 1s2p(P-1) excitation energy for helium atoms in liquid helium, solid helium and helium bubbles in metals

机译：液态氦中的氦原子，金属中的固态氦和氦气泡的1s（2）-> 1s2p（P-1）激发能

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The energy of the He 1s(2) --> 1s2p(P-1) transition for helium atoms in liquid helium, solid helium and helium bubbles in metals is greater than for free helium atoms by an amount known as the energy shift. The energy shift is calculated by combining the results of ab-initio self-consistent field electronic structure calculations with corrections to account for the effects of electron correlation. The corrections consist of a short-range correlation energy which is calculated using density functional theory and a dispersion energy which is calculated using a modified form of the van der Waals interaction. The method allows significant improvements to be made on previous calculations and the predicted Values of the energy shift are in good agreement with the experimental results. [References: 45]

机译：液态氦，金属中的固态氦和氦气泡中He原子的He 1s（2）-> 1s2p（P-1）跃迁的能量比自由氦原子中的He跃迁的能量大，称为能量转移。通过将从头算起的自洽场电子结构计算结果与校正值相结合来计算能量偏移，以解决电子相关性的影响。校正包括使用密度泛函理论计算的短程相关能量和使用范德华相互作用的改进形式计算的色散能量。该方法可以对先前的计算进行重大改进，并且能量位移的预测值与实验结果非常吻合。 [参考：45]

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《Philosophical magazine, B. Physics of condensed matter, electronic, optical, and magnetic properties》 |2001年第1期|共25页
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Pyper NC.; Whelan CT.; Essex DW.;
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1. 氦原子对镍金属中刃型位错运动行为影响的原子模拟 [J] . 阳喜元中国有色金属学报（英文版） . 2015,第008期
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3. The 1s(2) -> 1s2p(P-1) excitation energy for helium atoms in liquid helium, solid helium and helium bubbles in metals [J] . Pyper NC., Whelan CT., Essex DW. Philosophical magazine, B. Physics of condensed matter, electronic, optical, and magnetic properties . 2001,第1期

机译：液态氦中的氦原子，金属中的固态氦和氦气泡的1s（2）-> 1s2p（P-1）激发能
4. Excitation of ~1S and ~3S Metastable Helium Atoms to Doubly Excited States [J] . M. Alagia, M. Coreno, H. Farrokhpour, Physical review letters . 2009,第15期

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机译：通过亚稳态ls2s〜1S和1s2s〜3S状态的类氦离子的高能光子的康普顿散射进行激发电离
6. Calculations of the He 1s~2 → 1s2p energy shift observed in STEM experiments on helium bubbles in irradiated materials [C] . D. W. Essex, N. C. Pyper, Colm T. Whelan Biennial meeting of the Electron Microscopy and Analysis Group of the Institute of Physics . 1999

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7. THE SCATTERING OF LOW ENERGY HELIUM ATOMS AT THE SURFACE OF LIQUID HELIUM. [D] . MROZINSKI, PETER MATTHEW -1

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9. Phase and density dependence of the delayed annihilation of metastable antiprotonic helium atoms in gas, liquid and solid helium [O] . Widmann, E, Sugai, I, Yamazaki, T, 1994

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10. Failure of the adiabatic criterion, structure and coherence in the low energy excitation of helium atoms by helium ions [R] . Dworetsky, S., Novick, R., Smith, W. W., 1967

机译：氦离子对氦原子的低能激发中的绝热标准，结构和相干性的失败

The 1s(2) -> 1s2p(P-1) excitation energy for helium atoms in liquid helium, solid helium and helium bubbles in metals

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