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Local energy equation for two-electron atoms and relation between kinetic energy and electron densities

机译:两电子原子的局部能方程及动能与电子密度的关系

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摘要

In early work,Dawson and March proposed a local energy method for treating both Hartree-Fockand correlated electron theory. Here,an exactly solvable model two-electorn atom with pure harmonic interactions is teated inits ground state in the above context. A functional relation between the kinetic energy density t(r) at the origin r=0 and the electorn density rho(r) at the same point then emerges. The same approach is applied to the Hookean atom,in whcih the two electrons repelwith Coulombic energy d~2/r_(120,with r_(12) the interelectronic separation,but are still harmonically confined. Again the kinetic energy density t(r) is the focal point,but now generalization away from r=0 is also effected. Finally,brief comments are added about He-like atomic ions inthe limit of large atomic number.
机译:在早期的工作中,Dawson和March提出了一种局部能量方法来处理Hartree-Fock和相关电子理论。在此,在上述情况下,将一个具有纯谐波相互作用的可完全求解的模型二电子原子转变为基态。然后在原点r = 0处的动能密度t(r)与同一点的电子密度rho(r)之间出现函数关系。相同的方法适用于胡克原子,这两个电子排斥库仑能d〜2 / r_(120,r_(12)阻止电子间分离,但仍受谐波限制。动能密度t(r)作为焦点,但现在也实现了从r = 0的推广,最后,在大原子数的范围内,对He样原子离子作了简要说明。

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