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首页> 外文期刊>The Journal of Chemical Physics >STABILITY ANALYSIS FOR SOLUTIONS OF THE CLOSED SHELL KOHN-SHAM EQUATION
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STABILITY ANALYSIS FOR SOLUTIONS OF THE CLOSED SHELL KOHN-SHAM EQUATION

机译:封闭壳KOHN-SHAM方程解的稳定性分析

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摘要

The stability conditions for restricted closed shell Kohn-Sham density functional treatments are derived. In close analogy to the Hartree-Fock method we obtain the equivalent of singlet and triplet instabilities. The nonreal instability now becomes trivial and just expresses the aufbau principle. Demonstrative applications confirm the expected increased stability of density functional treatments as compared to Hartree-Fock. This is an improvement but the unphysical bifurcations do persist. (C) 1996 American Institute of Physics. [References: 25]
机译:推导了受限封闭壳Kohn-Sham密度泛函处理的稳定性条件。与Hartree-Fock方法非常相似,我们获得了等效的单重态和三重态不稳定性。现在,非真实的不稳定变得微不足道了,只是表达了aufbau原理。示范性应用证实,与Hartree-Fock相比,密度功能治疗的预期稳定性有所提高。这是一种改进,但非自然分叉的确存在。 (C)1996年美国物理研究所。 [参考:25]

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